Rule 34 Dev - 1girl animal_ears aston_machan_(umamusume) blush breasts brown_hair day glasses green_eyes highres horse_ears horse_girl horse_tail looking_at_viewer medium_breasts outdoors over-rim_eyewear red-framed_eyewear semi-rimless_eyewear short_hair skirt smile suspender_skirt suspenders tail umamusume yu_ni_t|17355639015