1girl, ahoge, alternate_costume, animal_ears, arched_back, arm_support, armpit_crease, ass, backlighting, banned_artist, big_hair, blue_one-piece_swimsuit, blush, braid, breasts, brown_eyes, brown_hair, competition_school_swimsuit, cowboy_shot, day, from_side, hair_between_eyes, hand_on_own_chest, horse_ears, horse_girl, horse_tail, huziko32, indoors, long_hair, looking_down, medium_breasts, mejiro_bright_(umamusume), one-piece_swimsuit, parted_lips, pool, poolside, profile, school_swimsuit, side_braids, sideboob, sitting, soaking_feet, solo, sunlight, swimsuit, tail, tail_through_clothes, thighs, twin_braids, umamusume, very_long_hair, water, wavy_hair, wet, wet_clothes, wet_swimsuit, window