This looks really good. You do a great job in creating these blocks and my bank account can verify to that!

One thing that I thought would be interesting for a future block came to mind when I saw your first couple of images. With your 81 City Blocks the interior blocks look really good with your existing sets, however on the peripheral roads I thought it might be interesting to have some blocks that look like they might be on the edge of the town or city. That is what struck me with the first couple of images. They looked like some homes on larger more widely space lots like you might find on the edge of the town. I would love to be able to do some renders showing traffic driving along the edge of the town or leaving/entering the town from the country. I don't know if that is an idea you have considered or not.