NICE one dude!!
great proportions and a lot of detail.
i especially like how the large powermaster head is set correctly rather than some other version which has theirs too far forward.

i'm quite tempted to make you an offer on it... hehehe.

btw, do you have any plans for giving the smaller prime cab some articulated treatment?
its not a big deal as i suppose hes gonna be in his steroid pumped power suit most of the time anyways but it would look better if he was articulated.