Color correcting can be a daunting task. One tutorial that’s been making the rounds, advises using classical art as the basis for an updated color palette. The technique is simple: find a piece of art that matches the look or style you want, then use Photoshop’s Match Color tool to correct each individual section.
It’s quick and dirty, but if the examples given are any indication then the results can be pretty amazing. Check out the tutorial for the full scoop.