nazgul

I wonder which of the nine Ringwraiths this is? I think it must be the Lord of the Nazgul as he has had me wandering around the Encyclopedia of Arda reading up on all sorts of things and ignoring any jobs that I should be doing. I now know that Tolkien only named one of the nazgul himself, Khamul the second in rank after the lord of the nazgul. The name Sauron is pronounced Sowron, as in "now" and quite a few other things. That's the trouble, I start off with one thing and get in a word chase hopping from one to another.
I think this picture is really good with the fire behind the figure and the moon shining through the smoke. He is very powerful, but not for good.