Original? yes I mean I haven't seen anything like this before inhere (not that I am super active in here) but there are some points that bug me a bit. The elbow on the right creeps me out could be that it is perfectly fine but it is just creepy to me. And then the anatomy of the body that is reducing the score even more. In the upper legs there are 2 bones not 1. And the neck bone has the same width as the leg bone just does not cut it for me.
I know to perfectly copy the human anatomy with a decapitation and removal of the legs is not easy but some effort may be demanded ... unless of course this is not a human and thus I am giving you a bad rating of something that has no reasoning to it.
I do hope to see more work of you in the future and as far as I am concern this is the appropriate place.