Make a Renaissance-style portrait of this guy... with a goat.
No goat. Yet. Will probably extend the background a little above his head. And maybe to the right depending on a goat. Damn that's a weird sentence to write.
All that's left is the top of the arm/goat transition, which is going to be pretty rough no matter what. And maybe see if some gradient shading helps.
Done? What else needs tweaked?
A little more darkening/blending around the ears