Both are awesome. I think I commented on your ROTJ version on facebook but I'll reiterate here,
The paint apps are amazing as always (you do beautiful work), I am very impressed with the jetpack. My only issue is with the cape's color. It's just too light. I think if you took a dark wash and weathered it some with paint it might help. But, i know how hard it is to find just the right color too! I actually tore up a pair of pants I had that was a close match to the color/texture I wanted for mine!
The prototype armor though... WOW. Simply amazing work. I HATE painting in white and you've done an amazing job. I would love to know how you did the cape here as well. Did you bleach the original piece or did you use paint to coat it? If you painted it is it now stiff?
Now I think I may have to get 4 fett's at the least... thank's a lot! (I've already done ROTJ... I'll keep one original... do a holiday fett... and now prototype fett too I think!)