1girl, ahoge, animal_ears, bare_arms, bare_shoulders, blue_eyes, breasts, camisole, crop_top, grey_background, grey_hair, hair_between_eyes, horse_ears, korokoro_nekoz, long_hair, looking_at_viewer, medium_breasts, midriff, navel, oguri_cap_(umamusume), simple_background, smile, solo, spaghetti_strap, stomach, umamusume, upper_body, very_long_hair