Thank you.
I’ll just reply to some things, to explain the reasons behind these changes.

To me the whole first act of the movie has some pacing issues. Vader’s arrival does not add anything at all to the story. That’s why I chose to remove it.
Placing Palpatine’s arrival as the opening scene allows to establish the real threat.
I removed the “It’s too late for me, son”. Usually people complain about Vader in ROTJ and how he looks and sounds way less menacing than in Empire. At this point, IMHO, he should still be that, the powerful inhuman machine. If he says to Luke that it’s too late for him, it sounds like he would like to be redeemed (something which I don’t like).
I won’t argue about personal taste. Every time I rewatch it I like the Throne Room more and more. The red lighting and royal guards are visible, as are Luke’s face and the small orange light in Palpy’s chair. But I like that everything else is black. There is just space out of the windows. And space is not blue. But again, personal taste is out of discussion. Same with lightsabers and Palpatine’s eyes.
About the Sarlacc pit sequence, I chose not to color correct almost anything from the Disney+ version. I just enhanced the blues and greens (for sky and lightsaber).
About music… again, that’s totally fine. I added new tracks when there was none, and replaced a few which I didn’t like (Ewoks’ music as they start the attack, for example).

That was some fine criticism. Thank you 😉