masterpiece, best quality, solo, 1girl, aged up, happy, ruby_kurosawa, kurosawa_ruby, short hair, bangs, red hair, aqua eyes, green eyes, two side up, winter-themed idol costume, cozy white coat with red ribbon, snowflake embroidery, fluffy earmuffs, scarf with pom-poms, snowy village stage, holiday lights in background, snow gently falling, warm smile, festive and heartwarming performance
