Rule 34 Dev - 1girl alternate_costume alternate_hairstyle animal_ears blonde_hair blue_eyes gold_city_(umamusume) hand_in_pocket highres horse_ears horse_girl jacket long_hair long_sleeves looking_to_the_side pants ponytail simple_background solo twitter_username umamusume upper_body uxxxjf white_background white_jacket white_pants|25173841095