1girl, animal_ears, bare_arms, bare_shoulders, blue_one-piece_swimsuit, blue_sky, breasts, brown_hair, cloud, covered_navel, day, ear_ornament, hand_on_own_hip, horizon, horse_ears, horse_girl, horse_tail, large_breasts, long_hair, looking_at_viewer, multicolored_hair, ocean, one-piece_swimsuit, outdoors, parted_lips, sakikumo_(sakumo), sirius_symboli_(umamusume), sky, smile, solo, sun, swimsuit, tail, tracen_swimsuit, two-tone_hair, umamusume, very_long_hair, water, white_hair