I've been doing it for 5+ years now (image correction)
Matrix needs retouching, even though they are one of the best in the content business
From my point of view the best work right now is being done by Wanton (Mutt's outfit), a few other's are close. Reyko gets better every day
I wish Focus Adult (formerly Phoenix) would get new equipment, they get great girls but sometimes the image quality is lacking
As Much as I like Cloud 9 Content at times they need serious touching up as well, but they have great models and are a good company to deal with
Actually every serious adult site should have someone on staff to do color correction to give their customers the best quality product .... unless they can make more $$$$ without one
here's a real sloppy page of some quick image corrections
The corrected image will be on the right of your screen
http://www.nofreeporn.com/samples.html
and no I am not competing with Forest's friend or offer, just illustrating how important quality is