Rule 34 Dev - 1girl :d animal_ears bow ear_ribbon frills green_bow green_ribbon hand_on_own_chest horse_ears horse_girl horse_tail kneehighs long_hair mejiro_mcqueen_(umamusume) open_mouth purple_eyes purple_hair ribbon signature simple_background smile socks solo tail tanaka_masayoshi twitter_username umamusume white_background|16059710043