Rule 34 Dev - 1girl animal_ears bow brown_hair ear_covers grey_bow hand_up happy horse_ears horse_girl idol king_halo_(umamusume) looking_at_viewer multiple_views official_alternate_costume one_eye_closed saeki_iori seki_(hyokosho) smile speech_bubble splendor_of_onyx_(umamusume) umamusume wavy_hair|20095664355