Nice work with the day for night matte of the shuttle (obviously removing the X-wing guns is a tidy up job for later) but it doesn't quite work in my opinion.

Luke is called by Vader, bumps into Obi-Wan's ghost and then has natter to Leia?

I assume the shuttle is a fair distance from the village so it must have been a bit of a jog.

It's bit of a shame that Luke is at Threepio's story hour. It would possibly work better if he has isolated himself from the others for the night and is on his own at the shuttle.

That way Ben's story telling could intercut with Threepio's (he runs through the plot of two and a half films too quickly so intercutting would allow him some space to embellish the Ewok's introduction to the Star Wars universe).

I don't think you need Vader to prompt Luke to surrender. It makes him stronger if he just decides to do it for the safety of the task force.

Another thing that always bugged me about ROTJ was how Ben's ghost interacted with the environment.

In ANH he is just a voice prompting Luke.

He does this for most of ESB and only actually appears twice were he seems to float in the air.

It would be cool if someone could get a clean shot of Ben with his hood up from ANH and put the ROTJ face into Ben in a standing position and have him fade in and out to make him more of a ghost and less of a transparent man sitting on a log but Mark's eyeline then becomes an issue.

Love the graphical button, how do you do that?