Outpainting, extend the canvas horizontally to 16:9 widescreen aspect ratio. Keep the central image completely locked and unchanged. Dynamically extend the sides of the frame. The scene is a continuation of a dark, ominous South Korean juvenile prison exterior at night from a webtoon manhwa comic. On the left and right sides, extend the imposing dark concrete walls topped with coiled razor barbed wire. Seamlessly expand the dark silhouettes of the prison facility wings and buildings under a heavy, solid blood-red sky with subtle dark ash particles. Maintain the stark, high-contrast monochrome and red color palette, clean ink line-art, deep blacks, and heavy dramatic shadows.
