A weary, rugged sort of hero

[Gors]

the way you're shading is kinda weird, you should look for references.

I couldn't find a better example than this one, but:



notice that there are some spots in the face that receives more light while others don't: those parts are basically things that 'stick out' from the face, such as forehead, cheeks, the nose, a little of the upper lip and a little of the chin. They end up casting shadows in the face itself, such as around the eyes, below the mouth and the area below the cheekbone. The way you have now atm looks a lot like banding, and makes it kinda flat.