I came back from Peru a week ago and spent a good part of last week tweaking and cleaning the best of them. They are now visible on flickr. The tweaking and cleaning I do on photos is very simple and consists in:
- stretching the contrast if required;
- removing fluff and dirt mark left on the lens or the sensor;
- very occasionally, cropping the shot.
So no heavy Photoshop (or in that instance GIMP) processing, just the bare minimum.