I noticed, Ady, that you added a lot of reflected light in your version of SW during the final battle.
One thing that always bugged me about the Luke/Vader duel in ESB is that it takes place in the dark yet the light sabers don't cast any light on them or their surroundings. I noticed that this was "fixed" in the prequels. Maybe you can make the light sabers cast light in the dark.
I made a quick Photoshop edit of how it might look like (keep in mind this is just a quick editing job) :
Original casting no light.
How it may look like with light sabers casting light.
Lemme know what you think?