Prompt: A dead colossal serpent, its obsidian scales glittering like frozen tears and a giant sword etched with ancient runes piercing its skull, lies sprawled across the snow-laden remains of a cyclopean city. A lone explorer, bundled against the glacial wind, approaches cautiously, his eyes wide with awe and trepidation as he takes in the enormity of the scene. Render the image in a photorealistic style, emphasizing the chilling grandeur of the fallen city and the chilling immensity of the dead serpent.