Create an image capturing the essence of contrast with a striking profile silhouette of a man against a vivid yellow background. Employ a camera setup that replicates a large aperture, ensuring the focus is sharply on the silhouette's edge, while low ISO settings preserve the deep color richness without introducing grain. Render the scene in photorealistic UHD quality. Add a touch of creative variance by introducing subtle shadows on the background, creating depth, and hinting at a soft gradient in the yellow hue, maintaining a raw and natural style.