I like the layout and style. I really enjoy how some of the buildings are falling apart.
Id like to see more partially destroyed buildings/walls. Also, take note that when putting a hole in a wall/building that there would be a pile of rubble from the wall/building either inside or outside. Rubble doesn't go away, it falls and stays where it lands unless somebody is moving things around. Add more rubble and condense existing rubble as it seems to be unnaturally spaced everywhere.
I also dont agree with the use of the vine bricks and grass bricks. They look good in moderation, but when used in all possible areas it tends to look repetitive. I recommend you mix the style of built plants and those bricks.
I'm assuming that those are papers you placed around on the roads. Now, they wouldn't fall like that especially if they've been sitting around for a while. The wind would blow them around and they would gather in various places: against walls, on fences, forming piles in the street with the rubble. Not evenly spaced around.
The last picture where you flooded the city is neat but it's missing something. Floating debris: something I haven't considered until I saw this build and something I think could be pulled off well. The papers in the street would float, random trash would float, basically just pollute the water. This could be nicely done with random bricks at water height. And if you do that, I suggest you make them non colliding. You cant walk on floating garbage...
