Amazing work!
Coincidentally, yesterday we were invited to a friend's apartment to watch the first three episodes of this last season of GOT. Mormont has been one of our favorite characters.
I have a great deal of respect for oil painters. I was never able to grasp the technique. I always felt intimidated by oleos. The mess, the mistakes that I was unable to fix.
You work oil as if they were water colors (I am guessing you used some on the background).
It was great watching you work your way in the canvas. Wonderful result.