A vibrant cartoon with colours and smooth animation. Of course For GenCartoon, keep the prompt focused on the visual story, because you can add the exact rhyme/audio separately if the site allows it. Copy-paste this prompt: Create a colorful, adorable 3D cartoon nursery rhyme video for preschool children aged 2-6. A cute little rainbow-colored train travels through a magical, cheerful world. The train has big friendly eyes and a smiling face. It passes through green hills, colorful flowers, fluffy clouds, sparkling rivers and a beautiful rainbow. Along the way, it meets a cute white bunny, a playful puppy, three colorful birds and friendly butterflies. The bunny hops, the puppy dances, the birds fly around the train, and everyone happily dances together. Bright colorful 3D animation, cute rounded characters, expressive faces, soft lighting, smooth movements, joyful children's cartoon style, safe and wholesome, no scary elements. Keep the characters' appearance consistent throughout the video. Use dynamic camera movements and close-up shots of the characters. End with everyone waving goodbye as the rainbow train travels toward the rainbow. HD quality, 16:9 landscape, suitable for a YouTube Kids nursery rhyme. If you want it to look like a viral nursery-rhyme channel, add this at the end: Catchy, highly engaging children's animation, colorful backgrounds, frequent character movement, playful expressions, visually interesting every few seconds, professional children's cartoon