All of the figures are Ral Partha "true 25mm" figures . . . which are available from Great Endeavors. I should note, by the way, that each of the units is a different figure (except for their leaders for which I deliberately used a different figure).
As usual, click on the photos to see a larger image (then click again for an even larger image). I've painted two units each with black shields, white shields and "red" shields: