kyoshinsya ysis, maruzensky (umamusume), umamusume, 1girl, animal ears, aqua eyes, arms behind head, arms up, bare arms, black camisole, black shorts, blue background, border, breasts, brown hair, brown tail, camisole, cleavage, closed mouth, collarbone, cowboy shot, crop top, hair between eyes, horse ears, horse girl, horse tail, large breasts, light blush, long hair, looking at viewer, midriff, navel, one eye closed, outside border, shorts, signature, simple background, single ear down, smile, solo, standing, tail, very long hair