diff --git a/src/lib/types/apple-music.ts b/src/lib/types/apple-music.ts
index 2b117de..5644684 100644
--- a/src/lib/types/apple-music.ts
+++ b/src/lib/types/apple-music.ts
@@ -40,6 +40,13 @@ export interface AppleMusicAttributes {
 	url: string
 }
 
+export interface AppleMusicArtistAttributes {
+	name: string
+	artwork?: AppleMusicArtwork
+	genreNames?: string[]
+	url?: string
+}
+
 export interface AppleMusicTrackAttributes {
 	albumName: string
 	artistName: string
@@ -64,7 +71,7 @@ export interface AppleMusicTrackAttributes {
 
 export interface AppleMusicRelationships {
 	artists?: {
-		data: AppleMusicResource<any>[]
+		data: AppleMusicResource<AppleMusicArtistAttributes>[]
 		href?: string
 		next?: string
 	}
@@ -117,16 +124,33 @@ export interface AppleMusicErrorResponse {
 }
 
 // Type guards
-export function isAppleMusicError(response: any): response is AppleMusicErrorResponse {
-	return response && 'errors' in response && Array.isArray(response.errors)
+export function isAppleMusicError(response: unknown): response is AppleMusicErrorResponse {
+	return (
+		typeof response === 'object' &&
+		response !== null &&
+		'errors' in response &&
+		Array.isArray((response as AppleMusicErrorResponse).errors)
+	)
 }
 
-export function isAppleMusicAlbum(resource: any): resource is AppleMusicAlbum {
-	return resource && resource.type === 'albums' && 'attributes' in resource
+export function isAppleMusicAlbum(resource: unknown): resource is AppleMusicAlbum {
+	return (
+		typeof resource === 'object' &&
+		resource !== null &&
+		'type' in resource &&
+		(resource as AppleMusicAlbum).type === 'albums' &&
+		'attributes' in resource
+	)
 }
 
-export function isAppleMusicTrack(resource: any): resource is AppleMusicTrack {
-	return resource && resource.type === 'songs' && 'attributes' in resource
+export function isAppleMusicTrack(resource: unknown): resource is AppleMusicTrack {
+	return (
+		typeof resource === 'object' &&
+		resource !== null &&
+		'type' in resource &&
+		(resource as AppleMusicTrack).type === 'songs' &&
+		'attributes' in resource
+	)
 }
 
 // Helper function to get high-resolution artwork URL
diff --git a/src/lib/types/editor.ts b/src/lib/types/editor.ts
index 11e9cb4..6671944 100644
--- a/src/lib/types/editor.ts
+++ b/src/lib/types/editor.ts
@@ -20,7 +20,7 @@ export interface EditorBlock {
 		items?: string[]
 		caption?: string
 		url?: string
-		[key: string]: any
+		[key: string]: unknown
 	}
 }
 
@@ -33,11 +33,11 @@ export interface EditorSaveData {
 // Tiptap/Edra content nodes
 export interface TiptapNode {
 	type: string
-	attrs?: Record<string, any>
+	attrs?: Record<string, unknown>
 	content?: TiptapNode[]
 	marks?: Array<{
 		type: string
-		attrs?: Record<string, any>
+		attrs?: Record<string, unknown>
 	}>
 	text?: string
 }
diff --git a/src/lib/types/lastfm.ts b/src/lib/types/lastfm.ts
index 06a6ded..81c4b33 100644
--- a/src/lib/types/lastfm.ts
+++ b/src/lib/types/lastfm.ts
@@ -39,7 +39,10 @@ export interface Album {
 		trackCount?: number
 		recordLabel?: string
 		copyright?: string
-		editorialNotes?: any
+		editorialNotes?: {
+			short?: string
+			standard?: string
+		}
 		isComplete?: boolean
 		tracks?: Array<{
 			name: string
@@ -51,7 +54,7 @@ export interface Album {
 			searchQuery?: string
 			storefront?: string
 			responseTime?: number
-			rawResponse?: any
+			rawResponse?: unknown
 			matchType?: 'exact' | 'fuzzy' | 'single'
 			searchAttempts?: number
 		}
diff --git a/src/lib/types/photos.ts b/src/lib/types/photos.ts
index 4a6da12..4dab3c4 100644
--- a/src/lib/types/photos.ts
+++ b/src/lib/types/photos.ts
@@ -9,6 +9,12 @@ export interface ExifData {
 	location?: string
 }
 
+export interface ColorPalette {
+	hex?: string
+	rgb?: [number, number, number]
+	population?: number
+}
+
 export interface Photo {
 	id: string
 	src: string
@@ -17,7 +23,7 @@ export interface Photo {
 	width: number
 	height: number
 	dominantColor?: string
-	colors?: any
+	colors?: ColorPalette[]
 	aspectRatio?: number
 	exif?: ExifData
 	createdAt?: string
diff --git a/src/lib/types/project.ts b/src/lib/types/project.ts
index 720f66b..a3dd406 100644
--- a/src/lib/types/project.ts
+++ b/src/lib/types/project.ts
@@ -1,3 +1,5 @@
+import type { EditorData } from './editor'
+
 export type ProjectStatus = 'draft' | 'published' | 'list-only' | 'password-protected'
 export type ProjectType = 'work' | 'labs'
 
@@ -13,7 +15,7 @@ export interface Project {
 	featuredImage: string | null
 	logoUrl: string | null
 	externalUrl: string | null
-	caseStudyContent: any | null
+	caseStudyContent: EditorData | null
 	backgroundColor: string | null
 	highlightColor: string | null
 	projectType: ProjectType
@@ -43,7 +45,7 @@ export interface ProjectFormData {
 	logoUrl: string
 	status: ProjectStatus
 	password: string
-	caseStudyContent: any
+	caseStudyContent: EditorData
 	showFeaturedImageInHeader: boolean
 	showBackgroundColorInHeader: boolean
 	showLogoInHeader: boolean