The original picture again.

Using the Edge/Trace Contour Filter

The Emboss Filter

Next I took the Embossed photo and applied a coating of hot wax with the foreground color a very light purple.

And Finally ------

I couldn't help myself - so many other people have tried and successfully done a pencil sketch that I had to try. This was my end result. I used the tutorial found at the State of Entropy site. Click on the pencil sketch to go there yourself!