If you don't want to animate it, I would suggest you take a look at [Sculptris](http://www.pixologic.com/sculptris/). Different approach, you will end with a high-poly model which will have to be resurfaced before you can animate it, but it's worth a shot. My devil head was done with Sculptris, it did not need that long for me to get something usefull out of it. It's a bit like working with clay, it adds polys as needed. 

Try it, it's free. 

A ship in port is safe; but that is not what ships are built for.
Sail out to sea and do new things.
-"Amazing Grace" Hopper

Avatar image of me done by Chidori.