I am taking The Art of Blending over at Digital Scrapper. It is a forever class, at your own pace. Tonight I sat down and did one of the lessons. Here is a photo taken in Budapest. A really badly lit photo.
I sharpened it, then put a warming color action that came with the class, then put a blended texture on top and fiddled with the levels to make the colors really strong and contrasting. See what happened to the photo: