bkub, tamamo cross (umamusume), umamusume, umamusume: cinderella gray, commentary request, highres, official art, second-party source, 1girl, animal ears, bkub (style), black socks, blue background, blue eyes, chibi, company name, copyright name, couch, ear covers, english text, full body, gloom (expression), grey hair, hair ornament, horse ears, horse girl, horse tail, long hair, nervous tama-chan pose, open mouth, raised inner eyebrows, short sleeves, signature, sitting, socks, solo, tail, tracen training uniform, wavy mouth