Colorful kid's room, 3D architectural interior design software program, cartoon style, bright colorful walls, wooden floor, cozy reading nook, bookshelves filled with kids' books, soft cushions, fun playful furniture, laptop and tablet on a desk, creative kid sitting, designing, building, playing, excited expression, casual clothes, messy hair, afternoon sunlight streaming through the window, gentle warm lighting, shallow depth of field, vibrant colors, playful composition.