Vader's blade may not always have been as strongly red as we'd imagine in every shot, but there is no way it should be that pink. You'll notice that Luke's blade is pushing well into cyan and even almost flat-out green at times, which is certainly not correct either.

I strongly suspect that the film has been scanned with a light source that is inappropriate to the color timing the film was actually aiming for, and that rebalancing the whole image to compensate would help eliminate this issue.

Other than that, it looks really great . . .