Here are the final pencils for Irontooth's design. This guy started off on the wrong foot and he felt too much like an orc than a goblin (and we all know what that's like). You can see an early draft of him HERE. After further exploration of his design I was able to drag a better set of shapes and personality out of him! Irontooth has some classic fantasy details that make up his appearance. Like a notched battle axe, wolfskin cloak and a painted hand on his face. So he's naturally been very entertaining to draw!
Irontooth is copyright WotC and can be seen in the Keep on The Shadowfell module for D&D.