1girl, ahoge, animal ears, bow, bowtie, earrings, full body, greyscale, hair between eyes, horse ears, horse girl, horse tail, jewelry, long hair, looking at viewer, monochrome, open mouth, outstretched arms, sailor collar, school uniform, shoes, short sleeves, single earring, skirt, smile, solo, spread arms, standing, summer uniform, tail, thighhighs, tracen school uniform