1girl, beach_umbrella, bikini, black_cardigan, blue_eyes, blue_sky, breasts, cardigan, cardigan_pull, cowboy_shot, dated, day, girls_und_panzer, grey_hair, halterneck, hanasan_0714, itsumi_erika, looking_at_viewer, medium_breasts, medium_hair, navel, open_cardigan, open_clothes, open_mouth, outdoors, pulled_by_self, red_bikini, side-tie_bikini_bottom, sky, smile, solo, standing, swimsuit, twitter_username, umbrella