Definite +1 on the 0:26:34 shot - that was one of the shots that stood out for me when I watched this.

I didn't really notice any blue walls or left-over SE stuff, although now that I come to think of it the Leia hologram did look different but I thought it was just down to being in HD.

Correct me if I'm wrong, but are your Greedo subs slightly different to those in msycamore's script? It would be good use his subs in your version as they are closest to the original, but yours did seem pretty close.