1girl air_groove_(umamusume) animal_ears blue_eyes bow breasts brown_hair choker cleavage ear_bow highres horse_ears horse_girl horse_tail jacket large_breasts long_sleeves looking_at_viewer midriff official_art purple_thighhighs red_shorts short_hair shorts simple_background smile solo starting_future_(umamusume) tail thigh_strap thighhighs transparent_background umamusume white_jacket yellow_bow