Model in quads!! It looks much cleaner and is more easier to crit.
For the actual model itself, it looks like you have a nice clean flow but you have poly wastage everywhere. That amount of polies is not needed to make a DBZ character look smooth, you can achieve better with less amounts, how ever, if you are doing high poly then at least give him a mouth
So far i'm sorry but it doesnt really look like vegeta, maybe some perfect front and side shots please? I know you have got the potential, with some critz, nice refs and drawovers we could have a nice looking vegeta here =)