It’s looking quite funky!
I’d agree with Lanz the facade front; some detail certainly wouldn’t go amiss. Gold Rush is probably quite a good point of reference for detailing ideas, the streets need to have a bit more life to them: sandbag areas, stacked supplies, washing lines, maybe some battle scars to the walls etc.
One other thing is the lighting, it’s looking a bit flat in areas I’d be tempted to maybe tone down the sunlight a bit and maybe stick some fake ‘subtle’ counter lights to accent certain edges. After all there are no rules that say all light has to come from the sun, and to some extent you may still need to fake refracted lighting.
All in all coming on very nicely remember it is the details that maketh the map. 
-Fluffy_gIMp