Harmy, I get what you're getting at, I don't think it's supposed to be THAT bright, but in the various bootlegs and other sources I've seen, the sky looks a little brighter and has a little more color in it, and the foreground seems contrast...ier?. In yours, the contrast still looks dull (though some non-SE/non-GOUT images, like the Topps Widevision card, look like that too).

Here's the Puggo Grande, which is what Corellian's mockup reminded me of. Obviously, the sky is too blown-out:

And I keep coming back to Moth3r's version of the '77 widescreen boot (even though the color gradiation of the horizon doesn't really register in this transfer):

Also look at the clip at the beginning of From Star Wars to Jedi - on the Japanese LD transfer, it doesn't look overly bright or blown-out, and even though the sky looks a little too bluish in the Luke closeup, the first shot seems "right"...

If anything, please fix that blood-red sun. It's supposed to be orange, and it is not supposed to look as saturated, sharp-edged or opaque as it does in the '04/'11 transfer. Right now, it seems to pop out from the background - it almost looks like it's pasted over the sky, whereas it used to actually look like it was in the sky.