ebanoniwa, agnes tachyon (umamusume), umamusume, highres, 1girl, animal ears, black necktie, black shirt, brown hair, chemical structure, coat, collared shirt, ear ornament, earrings, hair between eyes, hand to own mouth, hands up, horse ears, horse girl, jewelry, lab coat, long sleeves, medium hair, necktie, open clothes, open coat, parted lips, pen, red eyes, shirt, short necktie, simple background, single earring, sleeves past fingers, sleeves past wrists, smile, solo, sweater, white background, yellow sweater