1girl, arms_at_sides, black_background, closed_mouth, completely_nude, extra_arms, fingernails, flat_chest, full-body_tattoo, greyscale, hair_over_one_eye, horns, looking_at_viewer, monochrome, monster_girl, navel, nude, one_eye_covered, original, ruteko_(ruko220), sharp_fingernails, signature, simple_background, smile, solo, standing, tattoo, tentacle_hair, white_background