Portrait of a young woman in an advanced exo-suit, clad in sleek sci-fi armor, standing against the backdrop of a catastrophic nuclear explosion. The scene captures the immense blast wave and swirling nuclear ash that envelops the vibrant, towering mushroom cloud. Rendered with maximum detail, the image boasts a futuristic style characteristic of high-end science fiction, presented in ultra-high-definition, 8K resolution. The visual composition merges photorealism and hyper-realism, depicting the rapid acceleration and intense light flash of the explosion. Captured in a long exposure cinematic staging, the complex lighting highlights the intricate design of her armor and the dynamic environment. The third-person view emphasizes the scale and drama, creating a compelling, immersive scene characterized by intricate detail and cinematic grandeur.