Asteroid-Man those look magnificent :)
I have one suggestion and that is to make Vader a bit darker on the TESB cover - but other than that they look awesome.
Btw the covers I'm working on will be revealed towards the release of the Ep5 edit - I was gonna share them around this month but I need to do some extensive 're-jigging' to make them look as unique as possible and present them on bigger canvases so that when I scan/photograph them, they will look as good as they possibly can. And like I said in my OP: I will have 2 versions for each movie. One cover for each film will be based off the official design style and the other cover will be something unique.