1girl, black_skin, blue_background, blue_eyes, border, closed_mouth, colored_sclera, colored_skin, full_body, hair_ornament, hairclip, long_sleeves, looking_at_viewer, monster_girl, original, ruteko_(ruko220), snake, snake_hair, solo, standing, sweater, thighhighs, twitter_username, white_border, white_skin, white_snake, white_sweater, white_thighhighs, yellow_sclera, zettai_ryouiki