1girl, animal_ears, ass, big_belly, bikini, bloated, brown_hair, butt_crack, chan_hone_pkpk, closed_eyes, ear_ribbon, from_behind, full_stomach, grass_wonder_(umamusume), horse_ears, horse_girl, horse_tail, long_hair, mismatched_bikini, navel, skindentation, solo, special_week_(umamusume), swimsuit, tail, umamusume, weight_conscious, weight_gain