miyama mizuki (hoshihoshi1220), nice nature (umamusume), umamusume, commentary request, highres, 1girl, alternate costume, animal ears, blurry, blurry background, blush, breasts, broom, detached sleeves, heavy breathing, holding, horse ears, horse girl, japanese clothes, looking at viewer, medium hair, midriff, navel, new year, nontraditional miko, open mouth, red hair, short twintails, small breasts, solo, twintails