1girl, animal_ears, arm_up, armpits, arms_behind_back, black_hair, blue_eyes, bob_cut, breasts, cleavage, cleavage_cutout, clothing_cutout, detached_sleeves, eishin_flash_(umamusume), everchix, hair_ornament, horse_ears, horse_girl, horse_tail, large_breasts, medium_hair, open_mouth, outdoors, solo, swept_bangs, tail, umamusume