Rule 34 Dev - 1girl animal_ears arm_at_side arm_up armpits breasts brown_hair commentary ear_covers gentildonna_(umamusume) highres horse_ears horse_girl large_breasts looking_at_viewer red_eyes red_skirt shirt simple_background skirt sleeveless sleeveless_shirt solo standing take978733141 thighs umamusume white_background white_shirt|24586428906