T-Shirt Tシャツ

A cheerful cartoon bunny riding a small red bicycle with a big smile and sparkling eyes. The character wears a blue helmet with cute bunny ears popping out and a bright yellow backpack, adding playful detail and charm. Soft pastel colors, rounded shapes, and subtle motion lines give the illustration a lively, happy feeling. Clean outlines and a simple blue backdrop make it stand out with a fun, sticker-style look.