A vibrant cartoon with colours and smooth animation. Create a 4-second 3D children's cartoon animation. A cute little white bunny with fluffy white fur, big friendly eyes, pink inner ears, a tiny pink nose, wearing a bright blue T-shirt, blue shorts, white shoes and a yellow school backpack, wakes up happily in a colorful cozy bedroom. Morning sunlight enters through the window. The bunny opens his eyes, stretches his arms and smiles. Bright colorful 3D cartoon style, smooth animation, cheerful and child-friendly, consistent character design, no text, no subtitles, no watermark.