Dam nice Jim! Beautiful as well as inspirational work!!

I too will take the liberty of posting some of my efforts in the period. I have done the Legation battles of the Boxer Rebellion at 4-5 different conventions in our area using the "Old Glory" produced buildings from years ago with some of my own "scratched" ones but now...well I think some of yours will be on my Christmas list. We have always wanted to add to our setup by doing some of the town outside the legation walls and have the relief column fight its way in! I really like the shops especially the one with the overhanging balcony, any chance those doors will open to allow figures up there?
We also use Matakishi's excellent "The Natives are Restless" rules, great simple fun rules!
http://www.matakishi.com/apps/webstore/products/show/3513450,
Here's a few shots of my poor setup from a few years back. I custom-ed out the front of the British entrance with the small redoubt they had built there. They named it after a British officer whose name escapes me at the moment, "Hanely, Henry,...?" I also added sandbags to the top of the British arch as well. It is really not nearly as historically accurate as yours!
I love the Boxer Rebellion period and think it is one of the best for miniatures games and certainly one of the best for conventions! Hope I have not "highjacked" the thread to much, but people can see by these picture how much better your buildings are than these, and you cant buy these anymore anyway! These pictures are from the first con we ran it at and there is a lot more "flotsam and jetsam" added to it but where those pictures are I don't have a clue!
My fellow Bengal Club member Doug and partner in running these games in full Mandarin outfit! 
The "Old Glory" British legation arch with a sandbagged redoubt I built.
The "Tartar" wall in the background was built of 12 separate pieces of foam and then covered with a Durhams rock-hard/glue mixture and has over 10,000 hand pressed bricks done with a square brass tube tool I made.
Other members of the Los Angeles "Bengal Club" in mandatory kit!
Your's truly also in costume!