diff --git a/app/src/main/java/org/oppia/android/app/customview/OppiaCurveBackgroundView.kt b/app/src/main/java/org/oppia/android/app/customview/OppiaCurveBackgroundView.kt
index 9f60f2c4cca..6ee0b380c47 100644
--- a/app/src/main/java/org/oppia/android/app/customview/OppiaCurveBackgroundView.kt
+++ b/app/src/main/java/org/oppia/android/app/customview/OppiaCurveBackgroundView.kt
@@ -1,6 +1,8 @@
 package org.oppia.android.app.customview
 
 import android.content.Context
+import android.content.res.Configuration
+import android.content.res.Resources
 import android.content.res.TypedArray
 import android.graphics.Canvas
 import android.graphics.Color
@@ -38,7 +40,9 @@ class OppiaCurveBackgroundView @JvmOverloads constructor(
     resourceHandler.getLayoutDirection() == ViewCompat.LAYOUT_DIRECTION_RTL
   }
 
-  private var customBackgroundColor = Color.WHITE // Default color
+  private val orientation = Resources.getSystem().configuration.orientation
+
+  private var customBackgroundColor = Color.WHITE // Default color.
 
   private lateinit var paint: Paint
   private lateinit var path: Path
@@ -66,17 +70,37 @@ class OppiaCurveBackgroundView @JvmOverloads constructor(
     val width = this.width.toFloat()
     val height = this.height.toFloat()
 
-    val controlPoint1X = width * 0.55f
-    val controlPoint1Y = 0f
-
-    val controlPoint2X = width * 0.52f
-    val controlPoint2Y = height * 0.2f
-
-    val controlPoint3X = width * 1f
-    val controlPoint3Y = height * 0.1f
+    val controlPoint1X: Float
+    val controlPoint1Y: Float
+
+    val controlPoint2X: Float
+    val controlPoint2Y: Float
+
+    val controlPoint3X: Float
+    val controlPoint3Y: Float
+
+    if (orientation == Configuration.ORIENTATION_PORTRAIT) {
+      controlPoint1X = width * 0.55f
+      controlPoint1Y = 0f
+      controlPoint2X = width * 0.52f
+      controlPoint2Y = height * 0.2f
+      controlPoint3X = width * 1f
+      controlPoint3Y = height * 0.1f
+    } else {
+      controlPoint1X = width * 0.40f
+      controlPoint1Y = 0f
+      controlPoint2X = width * 0.60f
+      controlPoint2Y = height * 0.40f
+      controlPoint3X = width * 1f
+      controlPoint3Y = height * 0.2f
+    }
 
     path.reset()
-    path.moveTo(0f, height * 0.1f)
+    if (orientation == Configuration.ORIENTATION_PORTRAIT) {
+      path.moveTo(0f, height * 0.10f)
+    } else {
+      path.moveTo(0f, height * 0.30f)
+    }
     path.cubicTo(
       controlPoint1X,
       controlPoint1Y,
diff --git a/app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingFragmentPresenter.kt b/app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingFragmentPresenter.kt
index 2926dc64f1c..0c682fc2f1d 100644
--- a/app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingFragmentPresenter.kt
+++ b/app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingFragmentPresenter.kt
@@ -28,14 +28,14 @@ class OnboardingFragmentPresenter @Inject constructor(
       /* attachToRoot= */ false
     )
 
-    binding.let {
-      it.lifecycleOwner = fragment
-    }
+    binding.apply {
+      lifecycleOwner = fragment
 
-    binding.onboardingLanguageTitle.text = appLanguageResourceHandler.getStringInLocaleWithWrapping(
-      R.string.onboarding_language_activity_title,
-      appLanguageResourceHandler.getStringInLocale(R.string.app_name)
-    )
+      onboardingLanguageTitle.text = appLanguageResourceHandler.getStringInLocaleWithWrapping(
+        R.string.onboarding_language_activity_title,
+        appLanguageResourceHandler.getStringInLocale(R.string.app_name)
+      )
+    }
 
     binding.onboardingLanguageLetsGoButton.setOnClickListener {
       val intent = OnboardingProfileTypeActivity.createOnboardingProfileTypeActivityIntent(activity)
diff --git a/app/src/main/res/drawable/dropdown_background.xml b/app/src/main/res/drawable/dropdown_background.xml
index 3eca06cfe8c..c6cca728b36 100644
--- a/app/src/main/res/drawable/dropdown_background.xml
+++ b/app/src/main/res/drawable/dropdown_background.xml
@@ -1,23 +1,8 @@
 <?xml version="1.0" encoding="utf-8"?>
-<layer-list xmlns:android="http://schemas.android.com/apk/res/android">
-  <item>
-    <shape android:shape="rectangle">
-      <solid android:color="@color/component_color_shared_white_background_color" />
-      <corners
-        android:bottomLeftRadius="@dimen/onboarding_shared_corner_radius"
-        android:bottomRightRadius="@dimen/onboarding_shared_corner_radius" />
-    </shape>
-  </item>
-  <item
-    android:bottom="2dp"
-    android:left="1dp"
-    android:right="2dp"
-    android:top="0dp">
-    <shape android:shape="rectangle">
-      <solid android:color="@color/component_color_shared_white_background_color" />
-      <corners
-        android:bottomLeftRadius="@dimen/onboarding_shared_corner_radius"
-        android:bottomRightRadius="@dimen/onboarding_shared_corner_radius" />
-    </shape>
-  </item>
-</layer-list>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+  android:shape="rectangle">
+  <solid android:color="@color/component_color_shared_white_background_color" />
+  <corners
+    android:bottomLeftRadius="@dimen/onboarding_shared_corner_radius"
+    android:bottomRightRadius="@dimen/onboarding_shared_corner_radius" />
+</shape>
diff --git a/app/src/main/res/layout-land/onboarding_app_language_selection_fragment.xml b/app/src/main/res/layout-land/onboarding_app_language_selection_fragment.xml
index 37ff3fc566a..994d339e468 100644
--- a/app/src/main/res/layout-land/onboarding_app_language_selection_fragment.xml
+++ b/app/src/main/res/layout-land/onboarding_app_language_selection_fragment.xml
@@ -11,8 +11,9 @@
     <TextView
       android:id="@+id/onboarding_language_title"
       style="@style/OnboardingHeaderStyle"
-      android:layout_marginTop="@dimen/onboarding_shared_margin_medium_large"
+      android:layout_marginTop="@dimen/onboarding_shared_margin_medium_small"
       android:text="@string/onboarding_language_activity_title"
+      android:textSize="@dimen/onboarding_shared_text_size_large"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintTop_toTopOf="parent" />
@@ -22,6 +23,7 @@
       style="@style/OnboardingLanguageSubtitleStyle"
       android:layout_marginTop="@dimen/onboarding_shared_margin_small"
       android:text="@string/onboarding_language_activity_subtitle"
+      android:textSize="@dimen/onboarding_shared_text_size_medium"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
       app:layout_constraintTop_toBottomOf="@id/onboarding_language_title" />
@@ -29,7 +31,6 @@
     <TextView
       android:id="@+id/onboarding_language_text"
       style="@style/OnboardingLanguageMessageStyle"
-      android:layout_marginTop="@dimen/onboarding_shared_margin_medium_small"
       android:text="@string/onboarding_language_activity_text"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
@@ -40,7 +41,7 @@
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:orientation="horizontal"
-      app:layout_constraintGuide_percent="0.40" />
+      app:layout_constraintGuide_percent="0.20" />
 
     <org.oppia.android.app.customview.OppiaCurveBackgroundView
       android:id="@+id/onboarding_app_language_background"
@@ -52,9 +53,10 @@
 
     <ImageView
       android:id="@+id/onboarding_app_language_image"
-      android:layout_width="132dp"
-      android:layout_height="138dp"
-      android:layout_marginEnd="@dimen/onboarding_shared_margin_2xl"
+      android:layout_width="116dp"
+      android:layout_height="120dp"
+      android:layout_marginTop="@dimen/onboarding_shared_margin_small"
+      android:layout_marginEnd="@dimen/onboarding_shared_margin_medium_small"
       android:contentDescription="@string/onboarding_otter_content_description"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintTop_toBottomOf="@id/onboarding_language_title"
@@ -63,28 +65,24 @@
     <TextView
       android:id="@+id/onboarding_language_label"
       style="@style/OnboardingLanguageLabelStyle"
-      android:layout_marginTop="@dimen/onboarding_shared_margin_medium_large"
       android:text="@string/onboarding_language_activity_select_label"
+      android:textSize="@dimen/onboarding_shared_text_size_medium"
       app:layout_constraintBottom_toTopOf="@id/onboarding_language_dropdown_background"
       app:layout_constraintEnd_toEndOf="parent"
-      app:layout_constraintStart_toStartOf="parent"
-      app:layout_constraintTop_toBottomOf="@id/onboarding_language_center_guide" />
+      app:layout_constraintStart_toStartOf="parent" />
 
     <RelativeLayout
       android:id="@+id/onboarding_language_dropdown_background"
       android:layout_width="0dp"
       android:layout_height="wrap_content"
-      android:layout_marginStart="@dimen/onboarding_shared_margin_5xl"
-      android:layout_marginEnd="@dimen/onboarding_shared_margin_5xl"
       android:layout_marginBottom="@dimen/onboarding_shared_margin_small"
       android:background="@drawable/dropdown_background"
       android:elevation="@dimen/onboarding_shared_elevation"
       android:padding="@dimen/onboarding_shared_padding_small"
+      app:layout_constraintBottom_toTopOf="@id/onboarding_language_explanation"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
-      app:layout_constraintTop_toBottomOf="@id/onboarding_language_label"
-      app:layout_constraintWidth_percent="0.30"
-      app:layout_constraintBottom_toTopOf="@id/onboarding_language_explanation">
+      app:layout_constraintWidth_percent="0.40">
 
       <ImageView
         android:id="@+id/onboarding_language_dropdown_icon"
@@ -138,7 +136,7 @@
       android:text="@string/onboarding_language_activity_button_text"
       app:layout_constraintBottom_toBottomOf="parent"
       app:layout_constraintEnd_toEndOf="@id/onboarding_language_explanation"
-      app:layout_constraintWidth_percent="0.40"
-      app:layout_constraintStart_toStartOf="@id/onboarding_language_explanation" />
+      app:layout_constraintStart_toStartOf="@id/onboarding_language_explanation"
+      app:layout_constraintWidth_percent="0.50" />
   </androidx.constraintlayout.widget.ConstraintLayout>
 </layout>
diff --git a/app/src/main/res/layout-sw600dp-land/onboarding_app_language_selection_fragment.xml b/app/src/main/res/layout-sw600dp-land/onboarding_app_language_selection_fragment.xml
index df7ccc2de4d..a5a05ef77eb 100644
--- a/app/src/main/res/layout-sw600dp-land/onboarding_app_language_selection_fragment.xml
+++ b/app/src/main/res/layout-sw600dp-land/onboarding_app_language_selection_fragment.xml
@@ -45,14 +45,14 @@
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:orientation="horizontal"
-      app:layout_constraintGuide_percent="0.35" />
+      app:layout_constraintGuide_percent="0.34" />
 
     <androidx.constraintlayout.widget.Guideline
       android:id="@+id/onboarding_language_center_guide"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:orientation="horizontal"
-      app:layout_constraintGuide_percent="0.50" />
+      app:layout_constraintGuide_percent="0.45" />
 
     <org.oppia.android.app.customview.OppiaCurveBackgroundView
       android:id="@+id/onboarding_app_language_background"
diff --git a/app/src/main/res/layout/onboarding_app_language_selection_fragment.xml b/app/src/main/res/layout/onboarding_app_language_selection_fragment.xml
index a54807afdb1..6684b423244 100644
--- a/app/src/main/res/layout/onboarding_app_language_selection_fragment.xml
+++ b/app/src/main/res/layout/onboarding_app_language_selection_fragment.xml
@@ -8,20 +8,14 @@
     android:layout_height="match_parent"
     android:background="@color/component_color_onboarding_shared_green_color">
 
-    <androidx.constraintlayout.widget.Guideline
-      android:id="@+id/onboarding_language_header_guide"
-      android:layout_width="wrap_content"
-      android:layout_height="wrap_content"
-      android:orientation="horizontal"
-      app:layout_constraintGuide_percent="0.10" />
-
     <TextView
       android:id="@+id/onboarding_language_title"
       style="@style/OnboardingHeaderStyle"
+      android:layout_marginTop="@dimen/onboarding_shared_margin_xl"
       android:text="@string/onboarding_language_activity_title"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
-      app:layout_constraintTop_toTopOf="@id/onboarding_language_header_guide" />
+      app:layout_constraintTop_toTopOf="parent" />
 
     <TextView
       android:id="@+id/onboarding_language_subtitle"
@@ -44,14 +38,14 @@
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:orientation="horizontal"
-      app:layout_constraintGuide_percent="0.38" />
+      app:layout_constraintGuide_percent="0.30" />
 
     <androidx.constraintlayout.widget.Guideline
       android:id="@+id/onboarding_language_center_guide"
       android:layout_width="wrap_content"
       android:layout_height="wrap_content"
       android:orientation="horizontal"
-      app:layout_constraintGuide_percent="0.50" />
+      app:layout_constraintGuide_percent="0.40" />
 
     <org.oppia.android.app.customview.OppiaCurveBackgroundView
       android:id="@+id/onboarding_app_language_background"
@@ -63,8 +57,8 @@
 
     <ImageView
       android:id="@+id/onboarding_app_language_image"
-      android:layout_width="132dp"
-      android:layout_height="148dp"
+      android:layout_width="130dp"
+      android:layout_height="134dp"
       android:contentDescription="@string/onboarding_otter_content_description"
       app:layout_constraintEnd_toEndOf="parent"
       app:layout_constraintStart_toStartOf="parent"
@@ -86,7 +80,6 @@
       android:layout_marginStart="@dimen/onboarding_shared_margin_4xl"
       android:layout_marginTop="@dimen/onboarding_shared_margin_medium_small"
       android:layout_marginEnd="@dimen/onboarding_shared_margin_4xl"
-      android:layout_marginBottom="@dimen/onboarding_shared_margin_large"
       android:background="@drawable/dropdown_background"
       android:elevation="@dimen/onboarding_shared_elevation"
       android:padding="@dimen/onboarding_shared_padding_small"
diff --git a/app/src/main/res/values-night/color_palette.xml b/app/src/main/res/values-night/color_palette.xml
index e44d0319066..f297cd51f4f 100644
--- a/app/src/main/res/values-night/color_palette.xml
+++ b/app/src/main/res/values-night/color_palette.xml
@@ -24,7 +24,7 @@
   <color name="color_palette_toolbar_shadow_color">@color/color_def_black_24</color>
   <color name="color_palette_toolbar_text_color">@color/color_def_white</color>
   <color name="color_palette_secondary_toolbar_color">@color/color_def_forest_green</color>
-  <color name="color_palette_secondary_button_background_trim_color">@color/color_def_oppia_green</color>
+  <color name="color_palette_secondary_button_background_trim_color">@color/color_def_dark_green</color>
   <color name="color_palette_status_bar_color">@color/color_def_dark_green</color>
   <color name="color_palette_action_bar_color">@color/color_def_oppia_green</color>
   <color name="color_palette_highlighted_background_color">@color/color_def_highlight_blue_darker</color>
diff --git a/app/src/main/res/values/component_colors.xml b/app/src/main/res/values/component_colors.xml
index 052fa34a445..d942b104b09 100644
--- a/app/src/main/res/values/component_colors.xml
+++ b/app/src/main/res/values/component_colors.xml
@@ -308,5 +308,4 @@
   <color name="component_color_onboarding_shared_green_color">@color/color_palette_onboarding_primary_color</color>
   <color name="component_color_onboarding_shared_text_color">@color/color_palette_onboarding_primary_text_color</color>
   <color name="component_color_onboarding_profile_type_background_color">@color/color_palette_onboarding_profile_type_background_color</color>
-
 </resources>
diff --git a/app/src/main/res/values/styles.xml b/app/src/main/res/values/styles.xml
index 01e59b485ee..48644208247 100644
--- a/app/src/main/res/values/styles.xml
+++ b/app/src/main/res/values/styles.xml
@@ -658,7 +658,7 @@
     <item name="android:layout_width">match_parent</item>
     <item name="android:layout_height">wrap_content</item>
     <item name="android:textColor">@color/component_color_onboarding_shared_white_color</item>
-    <item name="android:layout_marginTop">@dimen/onboarding_shared_margin_medium</item>
+    <item name="android:layout_marginTop">@dimen/onboarding_shared_margin_medium_small</item>
     <item name="android:textSize">@dimen/onboarding_shared_text_size_small</item>
     <item name="android:fontFamily">sans-serif</item>
   </style>
diff --git a/app/src/sharedTest/java/org/oppia/android/app/onboarding/OnboardingFragmentTest.kt b/app/src/sharedTest/java/org/oppia/android/app/onboarding/OnboardingFragmentTest.kt
index 342f5a5e703..5fe73a74d55 100644
--- a/app/src/sharedTest/java/org/oppia/android/app/onboarding/OnboardingFragmentTest.kt
+++ b/app/src/sharedTest/java/org/oppia/android/app/onboarding/OnboardingFragmentTest.kt
@@ -124,13 +124,23 @@ import javax.inject.Singleton
   qualifiers = "port-xxhdpi"
 )
 class OnboardingFragmentTest {
-  @get:Rule val initializeDefaultLocaleRule = InitializeDefaultLocaleRule()
+  @get:Rule
+  val initializeDefaultLocaleRule = InitializeDefaultLocaleRule()
 
-  @get:Rule val oppiaTestRule = OppiaTestRule()
-  @Inject lateinit var testCoroutineDispatchers: TestCoroutineDispatchers
-  @Inject lateinit var htmlParserFactory: HtmlParser.Factory
-  @Inject lateinit var context: Context
-  @Inject lateinit var appLanguageLocaleHandler: AppLanguageLocaleHandler
+  @get:Rule
+  val oppiaTestRule = OppiaTestRule()
+
+  @Inject
+  lateinit var testCoroutineDispatchers: TestCoroutineDispatchers
+
+  @Inject
+  lateinit var htmlParserFactory: HtmlParser.Factory
+
+  @Inject
+  lateinit var context: Context
+
+  @Inject
+  lateinit var appLanguageLocaleHandler: AppLanguageLocaleHandler
 
   @Inject
   @field:DefaultResourceBucketName
diff --git a/scripts/assets/kdoc_validity_exemptions.textproto b/scripts/assets/kdoc_validity_exemptions.textproto
index fb49c21573b..d95675679d3 100644
--- a/scripts/assets/kdoc_validity_exemptions.textproto
+++ b/scripts/assets/kdoc_validity_exemptions.textproto
@@ -3,7 +3,6 @@ exempted_file_path: "app/src/main/java/org/oppia/android/app/application/Applica
 exempted_file_path: "app/src/main/java/org/oppia/android/app/application/ApplicationInjectorProvider.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/application/ApplicationStartupListenerModule.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/administratorcontrols/RouteToProfileListListener.kt"
-exempted_file_path: "app/src/main/java/org/oppia/android/app/customview/OppiaCurveBackgroundView.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/notice/AutomaticAppDeprecationNoticeDialogFragmentPresenter.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/devoptions/DeveloperOptionsActivityPresenter.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/devoptions/DeveloperOptionsFragment.kt"
diff --git a/scripts/assets/test_file_exemptions.textproto b/scripts/assets/test_file_exemptions.textproto
index 3f6b907ba7d..ae026d0e2cd 100644
--- a/scripts/assets/test_file_exemptions.textproto
+++ b/scripts/assets/test_file_exemptions.textproto
@@ -254,6 +254,7 @@ exempted_file_path: "app/src/main/java/org/oppia/android/app/onboarding/Onboardi
 exempted_file_path: "app/src/main/java/org/oppia/android/app/onboarding/OnboardingViewPagerViewModel.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/onboarding/RouteToProfileListListener.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/onboarding/ViewPagerSlide.kt"
+exempted_file_path: "app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingFragmentPresenter.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingProfileTypeActivityPresenter.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/onboardingv2/OnboardingProfileTypeFragmentPresenter.kt"
 exempted_file_path: "app/src/main/java/org/oppia/android/app/ongoingtopiclist/OngoingTopicItemViewModel.kt"