1girl, alternate_costume, animal_ears, blue_hair, blush, braid, breasts, covered_navel, crown_braid, hair_ornament, horse_ears, horse_girl, horse_tail, long_hair, looking_to_the_side, mejiro_ardan_(umamusume), pinky_iwata, purple_eyes, school_swimsuit, simple_background, smile, solo, stretching, swimsuit, tail, tracen_swimsuit, umamusume, white_background