Greg says :
Hey guys, I was over at Blizzard in California recently to do a talk for the staff and after was shown around the original art gallery that is housed in house. Anyway low and behold I came across a rather large and lovely piece done by Simon which I hadnt seen before and I thought you might like to see it. I took this photo and they said I could share it so here it is. Enjoy!
(UPDATE!) Thanks to Kenneth James Brennan we also have the pencils for this piece!