3D animated video: A cute chibi baby girl (blonde hair, blue star-patterned outfit) rides a playful gray donkey on a grassy hillside (fluffy cloud with megaphone, floating music notes, bright sky backdrop). The donkey starts with slow, gentle steps—its hooves tap softly on the grass (making tiny music-note sparkles drift), and the scene glows brighter with sunlight. It then accelerates into a lively dash (trotting quickly forward across the hillside): its body blurs with motion to highlight speed, the soft gray fur shimmers dynamically, and faint music-note particles scatter in its wake. As it moves, the donkey continuously blows a steady stream of colorful music-note bubbles (matching the floating notes) that drift upward, wobbling gently with the breeze, before popping softly (releasing tiny melodic-themed glitter). The baby girl holds the donkey’s reins with one hand (the other grips a megaphone), outfit fluttering slightly, feet dangling above the grass, and a bright smile as they dash through the cheerful hillside scene. Animation style: vibrant, whimsical, hyper-dynamic—add motion blur to the donkey and floating bubbles; bubbles sync with the dash rhythm. 12-second clip, 4K, 60fps (ultra-smooth, hillside dash with playful, musical interactions).