Looking really good.
And this may be of interest to all. Since I have a few more than ten buildings - closer to 100 - to provide windows and doors for as part of my wild west project, I have been experimenting with using adhesive packed paper and a draw program to create "peel and stick" windows and doors. I'm thinking to add 3D framing to some of them (all?) but allow the paper images to provide the "detail." The big challenge is permanence of the adhesives. I'll check and see if I have some photos and, if I do, post them over at my blog:
http://steeplechasingzebras.blogspot.com/If - when - found, they'll be posted under the buildings tab. There are some photos of the wild west buildings in a very raw state under the wild west tab.
But, again, Eric, very nice work. Don't know if I could do the card bit, though. It would be in 15 mm and I think that would drive me crazy.