Portrait of a fearless tribal man standing amidst a post-apocalyptic city overtaken by verdant foliage, inspired by the styles of Luis Royo and Greg Rutkowski, featuring a dark, gritty, and intricate design. The scene is enhanced by volumetric lighting and a dense atmosphere, capturing the essence of concept art and cover illustration. Rendered in high detail, it trends on art platforms with an 8k resolution, showcasing a dynamic pose and subtle yet impactful creative modifications that stay true to the original concept, without visible text or watermarks.