Diablo Head Sculpt - Not as Easy as I Thought

Here is a few renders of what I have so far:

This is probably one of the weirdest sculpts I have ever done, this is because there is not one exact way to sculpt Diablo. From all the reference images I have seen, There is always something different about each, and I think it just depends on how the artist thinks that Diablo should look like.

Here is what I mean:

Even the official sculpts from Blizzard are different on how the head looks. So I have decided to stick to just pull from all of these and make my own sculpt. But I think that I will try to focus more on the look of the last picture.

That's all for now, thanks for reading!