cool video. My 2 cents:
-Motion blur looks great on that shot.
-Vader with a lightsaber seems wildly unnecessary. Putting him on the defensive damages the coolness of the character as well, IMO.
-As far as the residual green screen goes... perhaps it's there; however the "fix" doesn't make any sense as the pilot's goggles are tinted orange... you wouldn't see blue sky through orange goggles, obviously. Those shots are probably fine as-is.