Nice, i loved deux ex: HR environments and i really think your scene is starting to look cool
I'm no pro, so my opinion might not be worth a lot,
i honestly think that the car doesn't fit as well as it should, it as a cartoonish look with it's silhouete.
the rest is going along nicely for the moment even if it doesn't seem " wet enough " yet (you will probably work around that in the future)
As for the tonality of the original picture, it his pretty " desaturated " with a golden filtre on the whole picture, we can hardly see any " red " color in the picture since everything is toned down to something close to a golden yellow. try creating a post process chain and add a uberpostprocesseffect module.
Link it in view> world properties > world post proces chain and then play with your uberpostprecesseffect module to achieve this kind of look, i would say to try using the " desaturate " a bit and play with the colorize mainly with the X,Y ( X = red, Y = green ) to manage to get a " yellowish look " to your scene.
once again, i'm no pro and someone might come and give you a beter tip than mines.