Generate a super high-quality, realistic photo of an advanced combat robot standing amidst a mars landscape. The robot should have a humanoid form, intricately detailed with armor plating, wiring, and hydraulics, wearing mant. It should carry a large rifle as if it's on patrol or standing guard. The background should feature towering canyon walls and ruins, suggesting an ancient civilization or a long-forgotten battlefield. The composition should have the texture and tension of a Renaissance painting. --ar 2:3