#0 - July 8, 2008, 1:14 p.m.
http://dedded.deviantart.com/art/Warchief-Unpainted-91028508
http://dedded.deviantart.com/art/Lich-King-Unpainted-85995511
http://dedded.deviantart.com/art/Lich-King-86583981
I entered this last, finished one in the Frostmourne fanart contest :)
Edit:
Painted version of Thrall!
http://dedded.deviantart.com/art/Warchief-91196925
http://dedded.deviantart.com/art/Warchief-close-up-91197022