The brightness on the sandpeople clip looks really good and the black-levels seem very nice and consistent. The ESB scene seems too bright (and also to cyan). The thing is that just like with the colours, the brightness has been fucked with very inconsistently throughout the films, there are scenes that are too dark but then there are scenes that are too bright, so I'm afraid that one brightness setting for the entire movie isn't gonna cut it (although, since for the most part the films are too dark, even over-all raised brightness would be an improvement for the most part).

Here's a screenshot from DeEd:

Compared to your:

Now, I like mine much better but it is of course a question of taste, so you should make your edit the way you think looks good :-)