1girl, artist_name, blush, breasts, cleavage, closed_mouth, collarbone, crossed_arms, fundoshi, girls_und_panzer, girls_und_panzer_ribbon_no_musha, hair_ribbon, hiyama_yuu_(wee259hiyama), japanese_clothes, large_breasts, lineart, looking_at_viewer, monochrome, navel, ribbon, serious, signature, simple_background, sketch, solo, tsuruki_shizuka, yamakasa