Rib Cage Study

This is my rib cage study. I'll put the name of the art work up when I find out what it's called and who it's by. Below is a picture that I used and my images. What I can tell you about the work is that it's very religious with the human body coiling  like a serpent around the tree. This image provided good views to approach with the rib cage study. I'll make sure to put up the artistic information.

thanks,

Derek