From the picture everything looks offset to the right.
The eyes are okay, the idea for them is weird and its not really working in my opinion. I think its because the mix between super spaced out eyes and eyes that are practically overlapping.
The mouth, errr, teeth are not the greatest. There is no really depth in the teeth,the teeth kinda look like they start in the back and jutt out far.
perhaps try shading it to look more appropriate, depending on if you want the teeth to look like they head into the mouth instead of out of the mouth, or vice versa.
Were you perhaps trying to make the teeth in "rows" similar to how sharks have their
teeth?
The head in my opinion has potential.