1girl, black sailor collar, black skirt, brown eyes, brown hair, holding own arm, kantai collection, looking back, one-hour drawing challenge, pleated skirt, ponytail, pout, ray.s, sailor collar, sailor shirt, school uniform, serafuku, shikinami (kancolle), shikinami kai ni (kancolle), shirt, short hair, short sleeves, simple background, skirt, solo, white background, white shirt