This pencil sketch was done between Paul Sand and I a few weeks back.  We used a grey toned paper and found that in hind-sight we would have been better off using a white paper in order to achieve greater depth in the values.  Of course this is not yet finished, and we still have a lot more to add, including the white for the highlight.  

Source

Wow!  It's been a while, but I feel the bug slowly creeping back in.  Anyway; here's a raw image of my most recent paining.  I finished it late last year and it's currently hanging on a wall at 500 Social Club, in San Francisco - CA.