1girl adjusting_clothes adjusting_swimsuit armpits bare_arms bare_legs bare_shoulders black_headwear black_one-piece_swimsuit breasts cleavage collarbone commentary_request frown garrison_cap girls_und_panzer green_eyes grey_hair hat highres itsumi_erika large_breasts looking_down motion_lines navel one-piece_swimsuit orange_background simple_background solo standing stomach sweatdrop swimsuit thigh_gap trembling tsurime wavy_mouth yaruku