Rule 34 Dev - 1girl animal_ears asaraku black_hair black_skirt blue_background blue_eyes blush breasts ear_covers embarrassed highres horse_ears horse_girl horse_tail long_hair long_sleeves medium_breasts shirt single_ear_cover skirt solo tail twintails two-tone_background umamusume vivlos_(umamusume) white_background white_shirt|24827891166