A cute purple rainbow train with a big smiling face and large blue eyes is cheerfully chugging along a winding railway track through green hills full of colorful flowers. White smoke comes out of the chimney in soft puffs. The train has a rainbow stripe on the front. Camera slowly follows the train from the side as it moves from left to right. Soft bouncing motion, happy energy. Cute 3D cartoon style for children, soft rounded shapes, big expressive eyes, vibrant saturated colors, smooth gentle animation, high quality, cheerful atmosphere, bright lighting, 16:9
