Yay, more vertebrae! I really like the almost-mechanical tentacles! And combining that in a drawing with the legit vertebrae, and horns? Agh, I love your work so much!!! ^_^
the ribcage can be tricky. It'd be hard to explain exactly how to fix it...what i can say for certian is that you're missing a rib... =/
I love some of the other elements that have shown up here that weren't in others. Like the bird wings behind...some sort of aquatic mammal flipper right. I also like the cog and how you extended the spine into a tail, and the increased detail on the mask. The symbols add a nice touch, and the broken horn adds a bit of personality.
hmm...maybe. I only see 11 and there are supposed to be 12. but really it's not something noticeable unless you're looking for it. I wouldn't have noticed if you didn't bring up the ribcage in the comments even, so that particular detail isn't something I'd stress over. =B
I love some of the other elements that have shown up here that weren't in others. Like the bird wings behind...some sort of aquatic mammal flipper right. I also like the cog and how you extended the spine into a tail, and the increased detail on the mask. The symbols add a nice touch, and the broken horn adds a bit of personality.