You 've done so well with armor rendering I think you should use more hard edges when it comes to face shading especally because the light source is so close. (I recommend lasso +Airbrush combo) In terms of values and colors i think you should choose one key light either moon or campfire and secondary L should be dimmer Other than that try keeping high contrast on the face as first focal point ,deeper shadows etc Hope this helps you out | Artwod Feedback