kayabakoro, itsumi erika, girls und panzer, commentary, commission, pixiv commission, 1girl, bicycle helmet, bike shorts, black gloves, black helmet, black shirt, black shoes, blue eyes, blush, fingerless gloves, gloves, grey hair, helmet, jersey, light frown, looking at viewer, medium hair, open mouth, red shorts, red socks, shirt, shoes, short sleeves, shorts, simple background, sitting, sneakers, socks, solo, white background