akagi koku, gentildonna (umamusume), umamusume, commentary, highres, 1girl, animal ears, back bow, blush, bow, bowtie, breasts, closed mouth, collarbone, frilled skirt, frills, full body, greyscale, hair ribbon, horse ears, horse girl, horse tail, large breasts, long hair, long sleeves, looking at viewer, monochrome, pleated skirt, ribbon, sailor collar, shirt, shoes, simple background, sitting, skirt, solo, tail, thighhighs, zettai ryouiki