a cute 3D cartoon girl with a messy bun and big sparkling eyes, happily walking along a sunny, ivy-covered alley while holding a red heart. She wears a striped dress with matching socks and sneakers. Her smile is bright, her eyes full of joy as she bounces slightly with each step. Soft sunlight filters through leaves, creating playful light and shadow on the cobbled path. Whimsical animation style, cinematic depth of field, Pixar-inspired, dreamy warm atmosphere, magical and cheerful motion