NeverarGreat said:
http://screenshotcomparison.com/comparison/3690
While most of the corrections are an improvement, this one looks substantially worse. Instead of "mystical swamp", it's "mud puddle with oppressive blue haze".
Does making the Hoth scenes less blue somehow make Dagobah less green and more blue?
As i have said before, Dagobah was NEVER green. It only became green in 2004. In fact it changes colour throughout the movie on the DVD/Blu-rays and goes from blue to a oversaturated artificial green. It's a complete mess. Dagobah was in fact VERY blue when it was first in cinemas. NEVER look at the GOUT or the Blu-Rays to get any idea how these films ever looked. The GOUT is a faded mess that it's colour has red shifted and lost a lot of the blues completely.
Some shots in the blu-ray do still have a pallet that is close to the original and hasn't been messed about with as much apart from some oversaturation of greens/yellows in places. For example:

Now dagobah has that blue haze. If you look at the bottom picture, which is the exact position where the xwing lands, then you can see that the light emanating from between the trees is blue. Now lets take a look at that exact same shot in the GOUT:

A complete muddy mess. You see how far the GOUT print has red shifted by this picture.
Now lets take a look at the unfaded 16mm print Puggo used:

Although this print has been cropped heavily at the top where the lighter section between the trees is, you can still see the amount of blue in the picture and it does indeed have a blue haze.
now here is a comparison from later in that scene. top blu-ray, second Puggo, third Revisited

Now you can see just how heavily blue the original version was. Nowhere in the original was Dagobah green. Now i took a few liberties here to try and keep Yoda green, but i wanted to keep the original colouring of Dagobah the same as the original.
Now lets have a look at different shots of dagobah from the Blu-Ray. This will really show you just how messed up the colouring is:
It starts off not too bad with dagobah mainly being blue but the greens are slightly boosted too much:


Then the scene where Luke meets yoda is almost pretty uniform in the colouring until you get to the end.

and this is the shot directly after that one:

I guess they didn't bother to get the blue hue correct between shots, when it wasn't wrong before this new colour correction for the DVDs.
Now Yodas hut, we see the haze is still blue:

After that it all seems to go to pot. Its almost as if they split the workload into separate shots and different people were working on them without bothering to double check that everything is matching up, or even close.

The this shot is the next shot we see of this (one quick shot of yoda separates them and these two shots were also filmed as one single one so the colour should be exactly the same)

you can see the difference a lot clearer here:
http://screenshotcomparison.com/comparison/9289
And it just keeps going throughout the rest of the dagobah scenes
These next pairs all follow on from one another. As you can see the colour matching is none existent:
This green dagobah...

Is immediately followed by this blue dagobah..

Again they can't seem to decide what colour this planet should be:
This shot is once again only separated by a short shot of Yoda
Now we have a baby blue dagobah in this shot

The all of a sudden its gone and looks very muddy coloured and the greens are way too boosted, they almost glow

So you can see just how much of a mess the colouring is on dagobah alone. And those are only just a few examples.
So what i am trying to do with the colour is to bring it closer to the original theatrical version, but not as extreme as that was as Dagobah was VERY blue all over in places.
So to sum it up:
If you want your Dagobah to be a muddy brown colour then you won't like this version, so the GOUT is the one for you;
If you like your Dagobah being a multicoloured green and blue mess then with oversaturated foliage , again you won't like this version, so the blu-rays will be the ones for you
But if you want your Dagobah to be closer to the original theatrical version colours that would have been shown at the cinemas, then you should like ESB:R.
The same goes with the Blue of Hoth. Luke's rescue is when it is getting dark and was always blue. Bad video transfer/ faded print, made it look more white