1girl, animal_ears, arms_behind_back, bare_shoulders, biko_pegasus_(umamusume), blush, breasts, brown_hair, closed_mouth, cowboy_shot, grey_shorts, grey_sports_bra, horse_ears, horse_girl, horse_tail, looking_to_the_side, midriff, navel, nose_blush, raised_eyebrows, short_hair, shorts, small_breasts, solo, special_cat, sports_bra, tail, umamusume