bium, cheval grand (umamusume), umamusume, highres, 1girl, :d, animal ears, aqua eyes, arm up, armpits, breasts, bright pupils, brown hair, gluteal fold, grey one-piece swimsuit, grin, horse ears, horse girl, horse tail, looking at viewer, one-piece swimsuit, open mouth, school swimsuit, school uniform, short hair, simple background, small breasts, smile, solo, swimsuit, tail, teeth, white background, white pupils