1girl, :o, abyssal ship, alternate costume, artist name, black choker, black hair, black shirt, black socks, black tongue, boots, choker, colored inner hair, cosplay, cross-laced footwear, green eyes, green hair, green sailor collar, grey footwear, grey shorts, hair between eyes, humanization, index finger raised, kneehighs, lace-up boots, looking at viewer, multicolored hair, pale skin, sailor collar, school uniform, serafuku, shirt, short hair, shorts, simple background, socks, solo, squatting, two-tone hair, white background