1girl, agnes_tachyon_(umamusume), ahoge, ascot, black_ascot, black_pantyhose, breasts, brown_hair, earrings, hair_between_eyes, horse_girl, jewelry, lab_coat, looking_at_viewer, medium_breasts, open_mouth, pantyhose, red_eyes, short_hair, simple_background, single_earring, sleeves_past_fingers, sleeves_past_wrists, smile, solo, sweater_vest, umamusume, white_background, yamanaka1004, yellow_sweater_vest