1girl, animal_ears, bare_shoulders, black_hair, black_thighhighs, breasts, cleavage, closed_mouth, clothing_cutout, eishin_flash_(umamusume), grey_eyes, horse_ears, horse_girl, horse_tail, large_breasts, looking_at_viewer, medium_hair, shoulder_cutout, simple_background, sitting, smile, solo, solokitsune, swept_bangs, tail, thighhighs, umamusume