A space marine standing confidently under the bright midday sun, captured in the intricate and surreal style reminiscent of H. R. Giger, yet rendered with the rich textures and dramatic lighting characteristic of an oil painting by Rembrandt; the marine's armor blending organic and mechanical elements with a dark, enigmatic atmosphere, highlighted by deep shadows and luminous highlights that bring out the detailed intricacies of the alien design, with clouds drifting in the background and a stark, barren landscape stretching out below.