Even as just a rough sketch, this is beautiful I really love the twilight colors in the background and the cloak whipping out across the page. Leaving the figure in grayscale works nicely- it feels cold and alone. Which I'm sure being on guard on a chilly Fereldan night would be.
Love the pose and the sense of authority you get from looking at the piece. The sketchy lines help add to the character in my opinion and it works pretty well overall. His cape is also awesome, but the pose of the legs looks a little wonky compared to the body.