1girl, air_groove_(umamusume), animal_ears, breasts, brown_hair, cleavage, closed_mouth, collarbone, horse_ears, looking_at_viewer, o-ring, profile, shirt, short_hair, sideways_glance, sideways_mouth, sleeveless, sleeveless_shirt, small_breasts, smile, solo, split_mouth, umamusume, upper_body, utsuke_(u_tuk_e), v_over_mouth