Desert Marathon Runner Portrait Finish Heat

Balance a desert marathon runner portrait around exhaustion and achievement near the finish. The runner stands or kneels beside a race marker with the desert trail stretching behind, sweat, dust, and sunburned color visible in a respectful realistic way. Use harsh but controlled late-afternoon light, heat shimmer in the distance, and a shallow background so the eyes remain sharp. Wardrobe should be technical running gear without visible race branding. The image should feel honest, determined, and athletic. Avoid fake bib text, impossible muscle definition, distorted shoes, extra limbs, glamorized dehydration, and crowded finish-line chaos.