Capture a photorealistic portrait featuring the striking silhouette of a black man in profile, set against a vibrant orange backdrop. Use a camera setup that mimics a large aperture, ensuring the focus rests solely on the sharp edge of the silhouette, while employing a low ISO to maintain the richness and depth of color without introducing grain. Let the image be UHD, showcasing the fine details with the aspect ratio of 9:16, and infuse a touch of creative unpredictability to enhance the raw style of the composition.