Image created in Photoshop using Fractalius plug-in. I have done a few different edits on this image, but prefer the way this came out. This is also the only edit where I tried to bring the eyes back through the layers.
Original image from which I created this, can be found here: http://www.flickr.com/photos/tambako/6884014996/sizes/o/in/set-72157600220682086/
My Fractalius tutorial: