1girl, d, animal_ears, armpits, arms_up, artist_name, bare_arms, black_ribbon, blue_one-piece_swimsuit, blue_sky, blush, breasts, brown_eyes, brown_hair, cloud, collarbone, competition_school_swimsuit, covered_navel, day, hair_between_eyes, heart, horse_ears, horse_girl, horse_tail, long_hair, looking_at_viewer, mayano_top_gun_(umamusume), one-piece_swimsuit, open_mouth, outdoors, ribbon, school_swimsuit, sidelocks, sky, small_breasts, smile, solo, swimsuit, tail, tail_through_clothes, teriibol, tracen_swimsuit, two_side_up, umamusume, very_long_hair, wet