Only 6 hours! Good gosh! I wish I could say that.
Cheers for posting this mate. It's always very interesting to see how an artist works through to the final piece. How did you darken the piece for the second stage? Was it inked or do you continue working on tonal values in pencil?
Thnx. After I got the drawing where I could render no more, I photographed it and adjusted the levels and curves in photoshop.