That's the portait I'm using for one of my characters.
He used to be a True Neutral archivist who worshipped Boccob. Then he went into the Tomb of Horrors. Came out worshipping Vecna. Sold his soul for answers to some questions, and got some crazy armor and book of spells.
Shit, he'd probably be the antagonist of the game if my old PC hadn't come back from hell riding a dracolich.