the pics: nice lightning, but not an after-war-atmo at all, looks like FFM-Westend at deep evening...wich is NOT a warzone at the moment.^^
search for some photos of... lets say ... SARAJEVO / KOSOVO after civil war (near past), BERLIN, DRESDEN, DARMSTADT, HAMBURG at the end of WW2, also the big KANTO EARTHQUAKE (1904) or KOBE / JAPAN (80´s), L.A. after riot-days or the big earthquake in the 80´s, TSCHERNOBYL ghost-cities (Stalker-game)...
just examples of real cities collapsed through war or cataclysms/earthquakes. you can also search for SOMALIA / AFRICAN CIVIL WARS and search the main cities of that countries.
but dont get shocked, hard stuff there. sometimes you will think "THAT WAS A MEGA-CITY????". also real-children-bodyparts-in-the-dustfields-warning on some pics you can find in google about that stuff.
dont know how old you are but you have to look at the near-past history, there is many of that things out of politics in the 50´s-90´s and ww2, earth is not a friendly place
could be that you dont wanna play shooters anymore after that when searching too deep ;/
dont have to carry something like that on my own (thank god), but have many friends that grew up in kosovo/serbia/albania throughout the civil wars there, and my parents and (rest of my) grandparents lived in darmstadt after ww2 (totally destroyed by clusterbombs), told and showed me pics how it was. "city-after-war" is HELL, belief me. when you wanna design something like that, you have to carry that with your design, or it is not believable > do a good research. just a design-purpose.
your signature: too much light, first comes name for identification, then the fx