astronaut skull 3d-render portrait

One subject: a single human skull sealed inside a cracked vintage astronaut helmet, shown in profile facing left and occupying the right third to center-right of the 3:2 frame with the helmet rim cutting the upper-right corner of the crop. The background fills the left two-thirds with deep starfield and faint nebular clouds that recede into soft darkness, leaving generous negative space in the left third for composition balance. Render as a photorealistic 3d-render with crisp hard specular highlights on polished helmet metal and subtle micro-scratches on the visor surface. Surface details show porous bone texture, hairline fractures, and pitted weathering on the skull contrasted with woven fabric and matte polymer of the suit. Lighting is high-contrast neo-noir: a cool rim-light from the left edge separates helmet silhouette and a low warm fill grazes the jaw to reveal teeth edges while keeping deep shadow on the rear cranium. Depth is moderate with the helmet and skull in sharp focus and the starfield softly defocused toward the far left two-thirds. Maintain a 3:2 aspect ratio and tight portrait crop so the skull fills roughly half the frame vertically and sits slightly below center vertically for breathing space.