I wouldn't say you are far away from a resemblance at all. In fact, that's a very good likeness. Nice work
Cool statue, looks very nice
and I really like Leviathan.
I look forward to seeing more
Robert - I enjoy keeping up with your work. Your traditional roots are inspirational to me so I say this with great respect for your traditional talent.
I think you might benefit from changing your workflow slightly - your drawings on your sight are very nice - since it is (for me and many others) easier to translate black and white information than a photo when sculpting you might want to consider drawing your target and then using that in conjunction to the photo reference for your sculpting workflow.
While it is true that someone can be a great sculptor [i]without[/i] 2d skills, it seems to be much easier, in my experience, for a talented 2d person to move into the sculpting world when they utilize their 2d skills in the process - just a thought.