Attached Link: http://www.luminous-landscape.com/tutorials/command_primer.shtml

Nilla - what kind of camera are you shooting these with? As for curves, Luminous Landscapes has a great primer on it. Check the link above. All I did in that first one was to adjust the black and white points (in quick terms, I pulled the bottom-left marker horizontally to the right and the top-right marker horizontally to the left). -=>Donald