Awesome mountain. Gotta love the subtle color shifts through the rock body. I thought it was a photo at first too. what killed the idea that it was a photo was the brown brush things down in the lower left, for some reason it was the first thing that I noticed that didn't have as much detail. But oh well, it's still a great piece of practice.
that's awesome, i cant pick colors to save my life. the fact that you chose the colors yourself and it still looks like a photo earns you major awesome points with me