Here's a few suggestions for you.

Comparison pic 81: When the Falcon takes off from Mos Eisely, they erased some wires or lines from the weird antenna or whatever it is and also added some traffic to the sky.

Comparison pic 123: I don't think the original engine glow was an actual error as you describe it. The original Falcon showed the engine with a full thrust even when it backs out of the docking bay, the SE changed it so it only have a full glow when finally taking off. I'm not sure but I think it's a digital Millennium Falcon in that shot.

I also think you can mention the different starfield in the '81 version opening crawl even though you don't show a pic of it. Otherwise I think you have covered all changes, maybe the Chess pieces were also recomposited in '97, I'm not sure.

Keep up the good work. :)