It has been a while since i did a personal project. hopefully i will get back into it now that i forced myself to do a quick 3d rendition of one of Patri Balanovsky's Concept
Great match to the source concept. Nice job taking the expression a bit further.
I like it though the teeth being moved is flagging my uncanny valley sense for some reason. Perhaps the mind expects teeth to stay still and have all the rest of the face shape around it.