Looks great, the head reminds me of a prehistoric Crocodile. Nice job with the zspheres.
Nice work. If you intend to pose him for effect with zspheres, I do hope you have done some quick tests as I can see some areas that may not hold. At least if you try to do certain poses, not sure what you are upto.
Now, I do believe the 'Genetic Police' are going to want a few words with you.