1girl, alternate hairstyle, armpits, arms up, black hair, blue bra, blue eyes, blue panties, blush, bra, breasts, closed mouth, commission, floral print, girls und panzer, hair down, hamada kiyo, hands in hair, kayabakoro, looking at viewer, medium hair, navel, panties, pixiv commission, print bra, print panties, simple background, sitting, small breasts, smile, solo, underwear, underwear only, white background