1girl, black_hair, blush, breasts, brown_eyes, chi-hatan_school_uniform, closed_mouth, dated, girls_und_panzer, happy_birthday, kumaisao, large_breasts, long_hair, looking_at_viewer, miniskirt, nishi_kinuyo, pleated_skirt, red_skirt, school_uniform, simple_background, skirt, smile, solo, white_background