I hate when people dress in period clothes and it seems like a costume. It's perfectly ironed or not the least bit dirty or... it just seems like dress-up and marrs the illusion. What you did in this shot, and what I think you have a real knack for, is avoiding that.
It really looks like this is a wizard in his real, everyday robes, that you happened to find and photograph. (The only thing would be that the ball he's holding looks a little bit too plasticky and modern, but even that's sort of minor here.)
I like the composition. I think it adds something that is head is not completely included. Lighting is great and I love the expression on his face.
Slightly orange looking. It could be my monitor but maybe you could of tried a slightly bigger DOF to help keep the hands and face nicely in focus becaue his eyes seem a little soft. The crop is fantastic!
This si a beautiful portrait. His hair is remarkable and is so beautifully featured by your lighting and setup. The whole effect seems to be a little spoiled by whatever is obscuring the top right of his head. If you had enough extra frame, that neutral top right area would have composed strongly if you shifted your subject over to the RH thirds line instead of the left.