P.Jade Linden
http://wonderpussoctopusink.com/

Louis LeBrocquy
http://www.lebrocquy.com/
(go to the "portrait heads" of the "paintings" section!)

Ken Vallario
http://web.mac.com/kenvallario/Site/2005.html#6

Mark Traughber
http://www.bloodle.com/index2.html

Jesse Reno
http://www.jessereno.com/

Joroko
http://www.joroko.com/cgi-bin/joroko.pl?a=detail&item_id=91