Epic cinematic 8k wallpaper of Ellen Ripley from the Alien movie, her expression determined and intense. She's clad in a tattered, grimy white tank top, set in a dynamic half-body action pose. Her forehead and cheeks glisten with sweat, capturing a photorealistic and cinematic essence. The image boasts VFX post-production, enhanced by RTX ray tracing lighting. Ultra-realistic and hyper-detailed, it achieves HD, HDR, 4k, and 8k fidelity. Shot on a Mitchell BNC camera with Octane render, the scene captures subtle background elements of a dimly lit, high-tech corridor, adding depth and atmosphere while maintaining focus on Ripley's commanding presence.