2girls, animal_ears, armpits, bikini, black_hair, blush, breasts, brown_hair, cleavage, collarbone, ear_ornament, frilled_bikini, frills, groin, hair_ornament, horse_ears, horse_tail, kitasan_black_(umamusume), kumiyabe, large_breasts, long_hair, looking_at_viewer, medium_breasts, multiple_girls, navel, ocean, open_mouth, outdoors, red_eyes, satono_diamond_(umamusume), sky, swimsuit, tail, umamusume, wet, yellow_eyes