Another layer was added over the photo layer and then each student traced their photo and colored it solid to create their personal silhouette. Then they erased the top portion of their head.
A third layer was added for the lines. I encouraged them to try all the different textures and effects that Brushes has to offer. I also wanted colors from the color wheel in correct order.
Finally each student saved their work, copied it to photos and uploaded it to their Dropbox folder. I made some changes from the original, but I found the this lesson idea at http://pinterest.com/source/elementaryartfun.blogspot.com/.