1girl, alternate_breast_size, animal_ears, armpits, bad_pixiv_id, bare_arms, bare_legs, bare_shoulders, bikini, blue_sky, braid, breasts, brown_eyes, brown_hair, cleavage, daien, day, ear_ornament, frilled_bikini, frills, gigantic_breasts, green_bikini, half_updo, horse_ears, horse_girl, horse_tail, innertube, long_hair, looking_at_viewer, navel, outdoors, satono_diamond_(umamusume), skindentation, sky, smile, solo, sparkle, string_bikini, summer, swimsuit, tail, thighs, umamusume, very_long_hair, wading, water, wet, white_bikini