Dear Jak,
Your heads were good at first. They were very original and precicely detailed and looked as though hours of work were put into them. Now, they are still good, but they are very monotonous (look it up!). If you still wish to make the S#!+loads of money off of your heads that you used to, I suggest you start trying out different styles, because, to tell the truth, all of your heads look the same.
With care, love, admiration, and proper grammar,
ChuckKills