I've been playing this weekend over on http://www.scrapinstyletv.com/ They are having an "sisiversay" celebration with fun tutorials, on-line classes and challenges. I found the photo scavenger hunt to fit it best with my current art pursuits. But all is fun there. You may need to sign in to get to the forums, but it's free.
http://www.scrapinstyletv.com/forums/39_33939_0.html this is the link to the scavenger hunt, there are lots of other challenges as well.!
My photo was taken with the iPhone and modified with the Art Camera Application, I then adjusted the color a bit to pull in some more orange. The challenge was to take a self-portrait and in your portrait incorporate each color of the rainbow...in any way you choose. I have a large star, each point is a different color. I thought it would probably show up in the Art Camera application, as assorted colors. It did!!!