Doesnt look bad, the head definatley need some tweaking though. Zangeif usually has a big manly jaw and a small forehead, but at the moment it looks like he is the oppisite, big forehead small jaw in the profile view.
Also his eyes need to be pulled back along with his eyebrows. The corner of his jaw is also not as sharp of an angle as normal.
Here is a quick paintover of what I am talking about
Hope that helps