1girl animal_ears bangs breasts brown_hair character_name choker cropped_jacket ear_covers flower hair_between_eyes highres holding holding_flower horse_ears horse_girl horse_tail light_brown_hair long_hair long_sleeves medium_breasts multicolored_hair navel over_shoulder red_background red_eyes red_flower satsuki_(miicat) simple_background single_ear_cover sirius_symboli_(umamusume) skirt smile solo starting_future_(umamusume) tail two-tone_hair umamusume white_flower wrist_straps