A vibrant cartoon with colours and smooth animation. Create a 30-second colorful 3D animated preschool video for YouTube Kids. Scene 1 (0-5 sec): A cheerful little girl named Mia and a little boy named Leo wave at the camera in a bright, colorful playground. A cute yellow duck waddles toward them. Scene 2 (5-10 sec): Mia points at the duck and says, "Yellow!" The duck happily flaps its wings. Add playful music and fun sound effects. Scene 3 (10-16 sec): Leo spots a small brown puppy. He counts, "One, two, three!" as three colorful balls bounce into the scene. Scene 4 (16-22 sec): Mia, Leo, the duck, and puppy play together while colorful stars and bubbles float around them. Scene 5 (22-27 sec): Everyone waves at the camera as Mia says, "Bye-bye, friends!" The puppy barks happily and the duck quacks. Scene 6 (27-30 sec): Show a bright, cheerful ending with the text "See You Soon!" and a short upbeat musical jingle. Style: Cute high-quality 3D preschool animation, bright colors, soft lighting, adorable expressive characters, smooth movements, child-friendly, cheerful atmosphere, simple educational content, consistent character designs, 16:9 YouTube format, no scary elements, no flashing effects.