Harmy, I know you toned down the overly-blue color on R2 as much as possible, but I think there's one that you missed. I don't have my disc with me right now, but I think it's around 8:40 or 8:50. It's the shot where, as the droids walk away from the pod, and R2's head comes up over a dune in the foreground.
You seem to have corrected the blue when the camera comes back to this angle a moment later. Can you give this shot the same treatment?