Epic cinematic 8k wallpaper of Ellen Ripley, expression a mix of determination and fear from the Alien movie, donning a tank top, wide-angle, dynamic action pose, half-body shot, beads of sweat glistening on her forehead and cheeks, close-up, centered composition, pressing her back against the Nostromo space shuttle's wall, standing in a dimly lit room, sci-fi, Ray Tracing, rim light accentuating details, ultra detailed, highest quality, cinematic, movie-grade stoicism, dark and moody environment, luminescent reflections, ambient lighting in 4k, Rembrandt style lighting, high contrast, shallow depth of field, RTX ray tracing, ultra-realistic, octane rendering, captured in stunning 8K.