ruined city backgdrop. apocalypse scene. armageddon death of civilization in war or environmental disaster. flat style

ruined city backgdrop apocalypse scene armageddon death civilization war environmental disaster flat style seamless illustration isolated white background vector destruction horror cartoon military terror radioactive radiation apocalyptic catastrophe destroyed end fantasy silhouette future gloomy industrial survivor cemetery cyberpunk demolished atmosphere contamination damage danger dead fear evil concept dark futuristic