1girl, artist_name, azumi_(girls_und_panzer), barefoot, beach_towel, bikini, black_bikini, blue_eyes, bracelet, breasts, brown_hair, cleavage, dated, earrings, feet, girls_und_panzer, jewelry, large_breasts, legs, legs_up, looking_at_viewer, lying, matsui_yasutsugu, necklace, o-ring, o-ring_bikini, on_stomach, open_mouth, parted_bangs, short_hair, signature, smile, soles, solo, swimsuit, the_pose, thong_bikini, toes, towel