I've only been able to watch about a third of the workprint so far.

I'm no color expert, and the colors look pretty good to me. Maybe just a bit "flat" though, if that makes any sense - almost a little monochromatic. Could be my laptop monitor though. Plus, I've really only seen mostly desert scenes at this point in the workprint.

One thing I did notice is that when the Star Destroyer flies overhead, right at the moment of the huge blue flare in the SE, the starfield to the right of the Star Destroyer seems to warp a little.