RotJ is better in the color department than ANH or ESB, but not perfect. I'm sure Ady's color correction will cover your recent thoughts, Angel.

As for the battle outside the Emperor's window, I think it should be moved closer, but not that close. They'd still have to be outside the range of the shields. But I think they should be more than points of light off in the distance, especially when Luke is watching during The Temptation. And I don't know if the DS surface would be in view from a tower that high above the surface... I don't have the brain for the calculations they did over on the ESBR thread about the Executor surface, so it might very well be visible. Not sure if its necessary though.