I figured that today, Veterans Day (originally Armistice Day), would be a good day to work on these WWI figures.
Here was the process involved in making one of the heads:
I started, using the 1/4 scale pre-cast skull I'd made for just such a contingency
Eyeballs (click, sir!)
I added wax to form muscles and skin around the mouth and chin
...nose and cheek muscles, etc.
With the helmet added, one can see how the finished product might look
The figure really begins to look quite dramatic in the light...