Upload & Sell: On
As a general comment, although we've been given powerful tools with which to work on images, there is always the risk of over-processing an image and thereby losing the freshness of the scene depicted. I recall my embarrassment as my post processing skills improved and I looked back at some of the early work I'd posted on TrekEarth. I recall replacing one such image that when I first posted seemed just fine. With a later version of Photoshop I went back to the image and reworked it. The conditions were surely challenging, shooting a long distance in midday sunlight. Had I known then what I know now, I probably would have done as Georg suggests, and converted the image to black and white where I have much greater control of light. Though the second image was better, it was still compromised.
I really believe less is more when it comes to post processing, though I'm completely willing to use all the tools at my disposal. We truly learn by doing.