I think this is the most viewed picture you've ever drawn. I think it's mostly because of how good you get the emotions down here. It's so funny to see a picture of the demon about to do someone in. Of course, in the games, they don't actually see him. It's still freaking awesome. I think the shading is absolutely flawless. The way you've put him in a cave just fits the mood perfectly.
It seems like this guy only has one facial expression. He's always in a situation where it fits him anyway! I guess it's suppose to be the same demon from the games. Or is it not the same demon in every game? Remember, they all look the same. Happy very belated Halloween!