It's a terrific diorama Chris.
I've got three WW2 scenario's planned for early next year and already have most of the basic kits & figures ready to be worked on.
One of them will be something similar to your diorama using a Tamiya Cromwell, Easy-Eight and the Masterbox 101st Tank Riders. If mine turns out even half as good as yours, then I'll be a very happy camper indeed.