1girl cowboy_shot emblem girls_und_panzer greyscale grin hair_intakes hand_in_pocket jacket kay_(girls_und_panzer) long_hair long_sleeves looking_at_viewer military military_uniform mituki_(mitukiiro) monochrome one_eye_closed open_mouth saunders_military_uniform short_shorts shorts sketch smile solo standing star_(symbol) thighhighs uniform w