Rule 34 Dev - 1girl adjusting_hair animal_ears blue_eyes brown_hair highres horse_ears horse_girl horse_tail kneeling long_hair midriff multicolored_hair navel ponytail sarcophage shoes simple_background solo sports_bra sportswear streaked_hair tail thighs tokai_teio_(umamusume) umamusume white_background white_footwear|25321477194