1girl, :d, animal ears, aston machan (umamusume), bow, bowtie, brown hair, brown thighhighs, cowboy shot, crown, dated, doll, holding, holding doll, horse ears, horse girl, horse tail, looking at viewer, sekiya kuzuyu, signature, simple background, smile, solo, tail, thighhighs, umamusume, white background, yellow eyes