I didn't sit down and watch the entire thing, but skimmed through it. It's really not half bad at all! I like it better than any other 3-in-1 edit I've been mildly curious about. I don't think I'd ever want to actually watch one, but I thought yours did it well.

I thought you absolutely nailed the opening. I know this is a dead project now, but I'll treat it as a workprint anyway and give you a few thoughts.

It might be better to follow the "long time ago" title card with the wide shot of the Naboo set piece where the Duel of the Fates kicks in full force (in TPM, the shot that follows the 'ascension guns' thing).

It might be good to keep some of the virgin birth and chosen one stuff, to give the film a thematic clinch, setting it up at the beginning and hearing it pay off at the end. Also, keeping the virgin birth dialogue in the first flashback would clear up confusion about Qui-Gon maybe being his father.

Also, it might be good to keep either a Qui-Gon voiceover at the end or the exposition about him to call back to the beginning of the film, again for cohesion.

Just thoughts. I thought it was pretty damn good; why call it quits now?