Gotta tell ya, I'm enjoying the haaaa-le out of this project.
After establishing my blue pencil layout I went to work on the police station first. I love the colors and I love the suggestion of texture to the walls... just enough stippling to give the impression of rough bricks:
The original picture has that "brick stippling" texture in droves and I'm not sure how they get it. Either they add to a basic color layer with a good texture brush or they Photoshop the walls with a pixelation filter, then add a slight guassian blur. Either way is highly effective to suggest bricks.
Next I got to work on the little cafe. Here's my progress:
More to come.