Very well done Pat. I can see what a lot of detailing you've put into your diorama.
To me the original photos of the storming of the Gate tower were the Iconic photos of the Battle of Hue.
Last year I did my own version of the tower latter in the day from the side where the assaults for the tower took place, though no where near as much detailing as yours Pat. I need to get better at portraying the brick arches better. Anyway here's the links to the threads with the photos.
https://forum.treefrogtreasures.com/showthread.php?67556-The-Tower-Tet-68&highlight=dong+ba
https://forum.treefrogtreasures.com/showthread.php?67555-Dong-Ba-Tower&highlight=dong+ba
I think you are going to have a lot of interest in your Vietnam dioramas at Chicago and they'll be getting sold quickly and you'll be getting commissions to do more.
Steve