1girl, animal_ears, beach, bikini, blush, breasts, collarbone, embarrassed, flower, hair_flower, hair_ornament, hibiscus, horse_ears, horse_girl, horse_tail, kitasan_black_(umamusume), looking_at_viewer, medium_hair, ocean, outdoors, red_bikini, red_eyes, saboten_mushi, sand, sky, solo, swimsuit, tail, towel, umamusume, water