Create an image of a rugged cowboy in a comic book style, standing inside a wooden saloon, lit by warm sunlight filtering through the windows. The cowboy has a stern expression, a white beard, and wears a blue denim shirt with rolled- up sleeves, a cowboy hat, and a gun belt. The style should feature bold outlines, high contrast shadows, and muted, earthy tones, with dramatic lighting and detailed backgrounds typical of a graphic novel.