Absolutely stunning piece.

For some reason I still think that the fireplace in the center sticks out a little too much. The outlines of the stones surrounding the fire are a bit too harsh compared to everything else. And maybe the floor in front of it should also receive a very slight red tone from the fire. I don't think the sunlight would erase it completely. 

These are obviously complaints on a very high level and the rest looks absolutely gorgeous but that may be the reason these minor problems caught my eye. 

Nice idea with the character. Finally some love for the bad guys. Looking forward to other pieces by you. 

Here are some suggestions for improvement:

What caught my eye immediately were the hands though. They generally seem a bit too small and his left hand looks flipped. The interior could also use a little shading since everything else also has it.