1girl :d animal_ears bangs black_ribbon black_thighhighs blush breasts brown_hair collarbone commentary crop_top day dog_tags earrings full_body fur-trimmed_jacket fur_trim grass green_jacket highres horse_ears horse_girl horse_tail jacket jewelry long_hair long_sleeves looking_at_viewer mayano_top_gun_(umamusume) medium_breasts navel off_shoulder open_mouth outdoors outstretched_arm ribbon shoes short_shorts shorts smile solo stomach tail takase_kou thighhighs two_side_up umamusume white_shorts yellow_eyes