Looking good mate
Contrast is king the mood calls for dark darks and strong highlights.
the moon perpahs is gaining too much priority right now I think it should be bright but might also look better with a couple of whisps of cloud over it.
it might balance the priority to use the moon colour in wolf's highlights too.
as wolf is subject he deserves more highlight further around instead of being so logical and only highlighting the top.
have u considered the relfection from his eyes is magically bright enough to illuminate around his eyes and along his nose a bit.
it would be good to see a bit of teeth and perhaps an evil smirk on one side showing a glint of a large fang.
I think his back is a little bit too hunched or his head could be a bit bigger or something, whatever it is head looks a bit disconnected to me.
in terms of adding rays I think this would be a final step and consider that a cigar smoke cloud would be good for that.
what is the painting in the background?
it would be neat if it had some relevance to werewolves.
I think his hand could be a little stronger too to suggest he has a firm grip on the business.