Now these kinds of art pieces have always amazed me with the depth and style and it sure does take a lot of effort and thats what you you have shown here. Im a big fan of diablo myself, And once again this was an awsome piece with lots to be desired and glad I saw this with a nice visual about it including great detail. so nice job here.
~~THINGS TO IMPROVE ON~~
I think you did a pretty good job all around but maybe adding more lighting effects would be a plus.