Yeah I had actually already checked caps-a-holic because I thought I remembered seeing comparisons there but it seems they had put them in something they call "the vault".

Now that I've checked them I agree with Matt, there's nothing wrong with them. Maybe there are some green tints here and there that people don't like but they look exactly the same as they did on DVD. And compared to the theatrical cut, it seems TTT has just a slightly different color timing in some scenes, like Treebeard's leaves being greener in the extended cut.

Anyway, I do find it horrible that Peter Jackson, who I respected greatly after seeing all the documentaries on the bonus discs in the extended cut DVD boxes, went the George Lucas-way and did something like that to FOTR. It's true that FOTR wasn't fully color timed like the other two when it was released, but the other two were professionally done. Skies were blue and not cyan, mountains were grey and not blue etc. If they wanted to re-do the color timing for FOTR they could have done it a lot better, even I could have done it better myself. I truly hope we'll get a better release someday, maybe along with the release of all three The Hobbit films, or maybe as a 4K resolution release.