Very nice models. 
A simple conversion but very effective.I have the same question?
Oooopf! Sorry didn't see that one. It is in fact an arm from a Games Workshop Epic Stompa (plastic kit from the days of yearn).
Very, very nice and very original. Superb stuff. 
As to your uniform design, I like the brown wash the tunic has, how about something worked around brown, with black shako black boots and black euipment?
Hmm. Yes! Perhaps I should just go with the thing I started a while back and let them have brown coat, white pants and black gear/hat. The rifle will probably light it up.
How do you guys feel about fire effects coming out of stuff? Like the firing soldiers - would it be nice to have som rays coming out of the gun (similar to the ones Mr. CigarFace has done with his Indians).
I can't really decide. I always thought that miniatures shouldn't look too "actionesque".