Hand-drawn illustration style vertical phone lock screen wallpaper featuring six cats peeking out, occupying 2/3 of the frame from behind a wooden door. Each cat has a unique shape and personality with rich layers. Blue-green short-haired cat (at the top): pale pink blush on cheeks, round slightly bulging eyes, cool tones, quiet and curious; black cat (below the blue-green cat): bright yellow big eyes, fluffy fur, playful expression; orange cat (middle left): warm orange as the main color, blue big eyes, blushing cheeks, shy and passionate; white cat (middle right): fluffy white fur, has a 'Hi' speech bubble, friendly and healing; gray cat (slightly below the center): round face, light gray fur with fine texture, soft and innocent blue-gray eyes; black cat (at the bottom): bright yellow big eyes, fluffy fur, curious little brother. Vintage wooden texture with wear marks and a retro door lock, creating a surprising atmosphere behind the old house door, contrasting with the soft and cute cats. The main color scheme is warm white (#F8F5F0), warm orange (#F9A826), and light gray (#D1D1D1), with auxiliary colors blue-green (#56A7A7), black (#2D2D2D), bright yellow (#FFD100), and pale pink (#F8C8C8), creating a warm, soft, lively, and non-cluttered feel.
