Nice greyskull. Personally since red is a colour that demands a lot of attention. I think when you added the red in the last update it kinda killed the focus of the piece. The dominating red forces the onlooker to move all about the page.
youve got really energetic strokes here my friend, but how bout trying to capture form in as little strokes as possible, some more confident lines y'know? also i agree with eternal, the red kind of distracts you, try adding it in the pupil of the eyes, with it maybe dripping down to kind of lead the eye to the main focus?
edit: also try working on those faces, they seem elongated? or is it just me?