2girls, alternate_costume, animal_ears, ass, aston_machan_(umamusume), black_thighhighs, buruma, curren_chan_(umamusume), from_behind, head_out_of_frame, heart, horse_ears, horse_girl, horse_tail, mayusaki_yuu, multiple_girls, original_race_uniform_(umamusume), race_bib, shoes, simple_background, skindentation, spoken_heart, tail, thighhighs, thighs, umamusume, white_background