Several pieces in progress.

"Dragon skeleton, version 1"
My newest attempt at modeling a full dragon skeleton.
This is the decimated version, btw.

The wings do have a fourth joint, and the bones are more delicate than they should be... all deliberate deviations!

"Dragon skeleton, version 2"
Another version with horns, wing and tail fin membranes (which for some reason are only visible in the topology view and preview...) and wing spikes for the membranes.