Act as a concept artist specializing in post-apocalyptic themes with 10 years of experience in creating dystopian character designs. Design a detailed MidJourney portrait of a [grizzled, battle-scarred warlord] standing atop a [massive, cybernetically-enhanced tank] in a [desolate wasteland under a blood-red sky]. The warlord should wear rugged, improvised armor made from salvaged tech, with a mechanical arm and a glowing cybernetic eye. The tank should be a fusion of rusted metal and advanced technology, with visible energy cores and weaponry, emitting faint steam and sparks. The background should emphasize the destruction of civilization, with crumbling skyscrapers and a barren, ash-covered landscape. Use a cinematic lighting style with dramatic shadows and glowing highlights to enhance the warlord's intimidating presence. Focus on intricate details, textures, and a gritty, high-contrast color palette.