1girl alternate_costume animal_ears bikini blue_eyes breasts brown_hair hair_ribbon high_ponytail highres horse_ears horse_girl horse_tail hoshinopurin long_hair looking_at_viewer multicolored_hair navel outdoors pink_ribbon ribbon small_breasts solo streaked_hair swimsuit tail tokai_teio_(umamusume) two-tone_hair umamusume white_hair yellow_bikini