Cost you a few bucks but I'm sure you could get something very close. As indicated by Crystal, he just got a bunch of stock art and arranged it together. You can do the same. Buy some quality skulls, heraldry style artwork, some splatters and arrange them together (and throw in some red dots for the eyes). To draw this by hand would be VERY time consuming obviously, so just drop the $50-$60 on some decent stock stuff and go to town.
More than likely these were obtained off of either istock or shutterstock. The theme is popular with the Gomedia guys but that really doesn't look like their style so would bet it's not theirs (wouldn't hurt browsing if they have some stuff that's close though).