Back with another update. First of all, thanks to all of you who have left comments. I do appreciate any and all feedback.
As I mentioned earlier, I plan on having some greenery next to building B. I noticed from films and pictures that there are quite a few houses in the Arnhem-Oosterbeek area that have hedges, so I decided to add a small hedge to the edge of building B's yard. I originally planned to use a model railroad item I had left over from a previous dio, but I wanted to show a hedge that had been beaten up by the battle, and cutting up the other hedge would have been too much trouble, so I decided to make my own bushes from scratch. I started by making armatures of the bushes using copper wire.

Once I decided that I had enough bushes, I coated the wire armatures with plaster.

Once dry, the bushes were painted with Tamiya Red Brown.

All that's left is a little highlighting and detail painting and my hedge is ready to be planted.
Speaking of the buildings, I made more progress. First, here is building A plastered

and with exposed brickwork details engraved in its back.

Next, here is building B with similar work finished.


Finally, I managed to get a bunch of roofing tiles cut and stacked.

They're plaster coated corrugated cardboard. Once painted, they should be ready to go up on the roof of the Main building.
Next I should be finished with a couple of streetlights pretty soon. I know I said I'd go back the figures after I got work done on the accessories, but I lied.

I did a little research and found my plans for the main building, especially the roof, aren't as daunting as I had feared, so my enthusiasm is high enough for me to tackle that building next. Once I've made good progress there, I'll get back to the figures.