Epic cinematic 8k wallpaper featuring a reimagined Ellen Ripley from the Alien movie, striking a heroic action pose amidst a dark, atmospheric space setting. She stands confidently in a futuristic corridor, gripping an advanced weapon with determination in her eyes. The background features looming shadows and dimly lit alien architecture, with a hint of glowing green mist to add an eerie, otherworldly ambiance. The scene combines elements of suspense and intensity, capturing Ripley's bravery and resilience in a visually stunning and dynamic moment.