I'm continuing to refine the drawing by adding thin layers of H pencil. The photos of the work aren't that wonderful due to poor light conditions, but generally you can see the stages of each rendering I've done. I'll continue to refine and clean up the drawing and hopefully we will have a great result at the end. It pays to study the anatomy where possible of the subject being drawn. I've got horses which does help. Zebra are different in many aspects. Wonderful animals!