I've decided that I have to re-paint the bridge entirely in order to remove the weird cell shaded effect, but I think I can use the inherent shading to provide a sort of pre-shading. The cafe is a whole other story. I plan to weather it, but I can't decide to repaint it or not. The little touches I did like painting some random 'errors' on the model to make it look a little more natural helped, as did making the recesses in the roof dark colors rather than white, but I might just build the table first and see how the cafe integrates into it.
My next post will likely show an upgraded bridge, though I am eager to paint a crashed Horsa glider..