Frame the silhouette of a lone figure, gazing out at a breathtaking cityscape from a rooftop vantage point. The surrounding city stretches before them, an expanse of towering skyscrapers reaching for the starry sky. To capture this captivating scene, use a full-frame DSLR camera, such as the Canon EOS 5D Mark IV, paired with a telephoto lens, the Canon EF 70-200mm f/2.8L IS III USM, to compress the perspective and emphasize the striking silhouette. Set your camera to a long exposure of 1/10s to blur the city lights, infusing the urban landscape with a soft, ethereal glow that adds a dreamlike quality. Focus intently on the contemplative expression of the figure, their thoughts reflected in the vibrant skyline, and use a shallow depth of field to separate them from the background, highlighting their peaceful posture. The city lights transform into delicate bokeh balls, enhancing the magical atmosphere. For a stunning 4K wallpaper, enhance the contrast between the dark silhouette and the bright city lights, creating a dramatic visual impact. Boost clarity and sharpness to emphasize the intricate details of the skyscrapers and the serene solitude of the figure. The cinematic lighting, with warm tones and soft shadows, adds depth and emotion, inviting viewers to envision themselves in a tranquil moment of reflection, high above the vibrant heartbeat of the city.