That looks very nearly flawless! Within the maximum nitpick zone, when they first appear it still looks like Luke was caught off guard and is getting into position.
Obi-Wan looks perfect now. Yoda is right, looking as we just saw him a movie ago. Anakin is recognizable, but the footage isn’t, and Luke has the right look and expression.
Terry, welcome. Thanks for the idea. Personally I like restricting the ghosts to those we’ve seen already, and adding more starts to make it questionable. It’s a way to still sort of harmonize with what the end of ROTS seems to want to say. Not drawing a hard line, but that’s my read on it. I’m glad we get to hear Qui-Gon, but I don’t need to see him.