epic portrait mech robots walking inside a dead world full of rocks and northern lights, foggy, dark, stars, metal, digital painting, artstation, concept art, soft light, hdri, smooth, sharp focus, illustration, fantasy, intricate, elegant, highly detailed, D&D, matte painting, in the style of Greg Rutkowski and Alphonse Mucha and artemisia, 8k, highly detailed, jurgens, rutkowski, bouguereau, pastoral, rustic, georgic, detailed concept art, illustration, colorful pastel, painting, detail, ultra detailed, digital art, 4K, unreal engine 5, 16k resolution,