2girls, animal ears, artist self-insert, bangs, comic, ear ornament, genderswap, genderswap (mtf), greyscale, hair ornament, horse ears, horse girl, horse racing track, horse tail, jacket, long hair, long sleeves, medium hair, monochrome, multiple girls, on grass, open mouth, original, pants, running, shoes, sidelocks, silence suzuka (umamusume), sound effects, speech bubble, speed lines, sweatdrop, tail, track jacket, umamusume, vest, yu'nyanko-chan (yu'nyanko), yunekoko