I had never even heard about this program until today. How does it compare to PS?
i use photoshop on my mac and gimp on my linux laptop. I use gimp more actually, once you find your way around you find it can do most of the basic workflow functions that the older versions of ps can.
I love this photo, and have often wondered how the effect is achieved. Would you be kind enough to point me in the direction of a tutorial?
Gimp will directly install on mac osx.