1girl, ass, bare_arms, bare_shoulders, blue_one-piece_swimsuit, blush, brown_hair, closed_mouth, from_behind, green_eyes, grey_background, hair_between_eyes, looking_away, looking_to_the_side, old_school_swimsuit, one-piece_swimsuit, original, ponytail, school_swimsuit, shibacha, sidelocks, simple_background, solo, swimsuit