It should go to the Hall of Fame, certainly.
Very impressive work.
At first I have prepared about 6 shades of grey and started to draw eyes and nose, then rest of head - it proved that I needed 2 more colours. At beginning I wanted to draw more than You can see here, but I wasn't pleased how it looks - especially the robe. So I've just finished it. In general - freestyle;) That means no refer images, it isn't anyone's portrait.
If You want to see my 'workflow' at another image, check http://www.youtube.com/watch?v=5724z2-rEzU :)
Very nice tones and anatomy, Im curious about your workflow, how did you go about making this?
This piece reminds sculptures of greek philosophers =]
Really impressive. Congrats.