A couple of dragon animations that I found on YouTube.
Here’s one which doesn’t appear to be based on any particular dragon form (it reminds me of the PD Zwei dragon forms though).
http://www.youtube.com/watch?v=iskTOSX__2g)
There’s also this excellent animation of yours truly:
http://www.youtube.com/watch?v=DxBcMPkG2ck)