1girl, alternate costume, animal ears, breasts, clenched hands, covering mouth, ears down, flipped hair, green nightgown, hair between eyes, heart, horse ears, horse girl, horse tail, kneeling, looking at viewer, matikanefukukitaru (umamusume), medium breasts, nightgown, on bed, short hair, simoyuki, simple background, solo, starry background, tail, umamusume, yellow eyes