Who's there?!

I really like the pose actually, I can see your headache with the cloak. Maybe if you strapped a shield to his back it would help.

This part is purely opinion but you could shift his face back into his hood a little more

Also for the background, remember; things in the distance become lighter as the atmosphere becomes thicker.
So for trees, the closest trees will be darker, and trees in the distance will be lighter- you could put some gaps in there with a bit of light