1girl animal_ears aqua_eyes bangs black_bow bow bowtie brown_hair closed_mouth commentary_request cropped_torso dress ear_bow grey_background hair_bow head_rest highres horse_ears horse_girl long_hair long_sleeves looking_at_viewer maruzensky_(umamusume) red_dress shiromaru_illust simple_background smile solo umamusume upper_body white_bow white_bowtie