I've long been a fan of the ColourLovers site - both as an admirer of their community fostering tools plus of the amazing things they post on their blog. Now, I'm not a skilled user of Photoshop, but I figured the activity in a recent article they posted was something even I could do.
It was my first time using "transform" in Photoshop. Are you impressed :)
I did five versions using different lines from the same photo. It's pretty amazing the different colour palettes you can pull.