Epic cinematic 8k wallpaper showcasing Ellen Ripley from the Alien movie, her face resolute and serious, wearing a tattered and dirty white tank top. She's captured in a wide-angle, dynamic action pose, with her forehead and cheeks glistening with sweat. The scene is a photorealistic, cinematic masterpiece with movie-quality VFX post-production. The lighting utilizes RTX ray tracing for an ultra-realistic, hyper-detailed look. Shot in high HD quality with HDR on a Mitchell BNC camera, this image boasts the brilliance of Octane Render, delivering outstanding 8K resolution with subtle creative tweaks.