Rule 34 Dev - 1girl absurdres alternate_costume animal_ears blue_eyes blush breasts brown_hair cheval_grand_(umamusume) cleavage collarbone cosplay hat highres horse_ears horse_girl itosu200 looking_at_viewer medium_breasts rice_shower_(umamusume) rice_shower_(umamusume)_(cosplay) seiza sitting solo thighhighs umamusume white_background|23601622122