1girl, animal_ears, ass, blue_one-piece_swimsuit, blue_sky, breasts, brown_eyes, brown_hair, cloud, competition_school_swimsuit, cowboy_shot, ear_ornament, from_behind, gradient_sky, horizon, horse_ears, horse_girl, horse_tail, long_hair, low_ponytail, multicolored_hair, one-piece_swimsuit, outdoors, pinky_iwata, satono_diamond_(umamusume), school_swimsuit, single_vertical_stripe, sky, solo, streaked_hair, swimsuit, tail, tail_through_clothes, thigh_gap, tracen_swimsuit, umamusume, very_long_hair