1girl, animal_ears, bikini, black_bikini, blue_eyes, blush, bottle, breasts, brown_hair, cleavage, collarbone, holding, holding_bottle, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, looking_at_viewer, mihono_bourbon_(umamusume), miyasaka_miyabi, outdoors, partially_submerged, ponytail, swimsuit, tail, thighs, umamusume, water, water_bottle