Rule 34 Dev - 1girl animal_ears bandana belt biko_pegasus_(umamusume) blue_eyes brown_hair clenched_hands eye_trail feet_out_of_frame fingerless_gloves gloves grin highres horse_ears horse_girl horse_tail jacket light_trail long_sleeves looking_at_viewer short_hair short_sleeves shorts smile solo tail tanahashi_beiko umamusume white_gloves|17649052785