Richard, it is just so wonderful to follow along with every new detail that you add to this diorama. While you have put a lot of things into this scene it does not look cluttered with too much detail.
Have you thought about adding any light fixtures to the front of the building, such as over the doors or over the gas pump area? Unless this would be a daytime only business, anyone buying gasoline at night would have trouble seeing things.
This is just a thought, as I'm not trying to create more work for you.
This looks just awesome so far.