mugi mg317, win variation (umamusume), umamusume, absurdres, commentary request, highres, 1girl, animal ears, blush, capelet, christmas, christmas ornaments, christmas tree, dress, ear covers, ear ornament, feather hair ornament, feathers, fur-trimmed capelet, fur trim, green eyes, hair between eyes, hair ornament, holding, horse ears, horse girl, long hair, looking at viewer, open mouth, red capelet, red dress, red hair, santa costume, santa dress, smile, solo, twintails