1girl, arms_behind_head, arms_up, black_background, blue_archive, cobra_(animal), demon_horns, fangs, greyscale, hair_between_eyes, halo, hood, hood_down, hoodie, horns, kayoko_(blue_archive), limited_palette, long_sleeves, looking_at_viewer, medium_hair, midriff, monochrome, open_mouth, red_eyes, solo, spot_color, upper_body, zxc00107