The head is messy over-all you need to work firs how to draw eyes, then you should go for how to draw nose and mouth, then you could try on how to draw teeth and how to shade pipes (cigarette) and then try to work on hairs ... but that head seems to be done in paint ...
Easy ...
2/10 for effort man cause i can't see this head any good in any ways.

I think u made this head j4lolz. ;) If no it's bad head :o