Rule 34 Dev - 1girl alternate_costume animal_ears blush buruma closed_mouth ear_covers ear_ornament godolphin_barb_(umamusume) greyscale highres horse_ears horse_girl horse_tail jacket kneehighs long_hair long_sleeves looking_at_viewer monochrome pataneet simple_background smile socks solo tail umamusume white_background|22204684476