1girl, adapted_costume, animal_ears, bad_pixiv_id, bare_shoulders, blue_eyes, breasts, cleavage, collarbone, cosplay, horse_ears, horse_girl, multicolored_hair, mutenka_(plfgb), open_mouth, smile, solo, streaked_hair, symboli_rudolf_(archer_of_the_white_moon)_(umamusume), symboli_rudolf_(umamusume), symboli_rudolf_(umamusume)_(cosplay), tokai_teio_(umamusume), umamusume