Great work - they really do look the business with your very distinctive painting style. I also used gloss varnish on the helmets for my dudes.
I should also say your photography is tip-top as well.
On the table they can be pretty effective - especially on smaller boards, e.g. 500 pt games, as they throw out a lot of firepower (albeit white dice) but over a shorter range. Always a bit of fun, these chaps but with white defensive dice they die like, well, Rebels.