The dragon uses many of the macros I developed for other creatures. When I started creating creatures I wanted a dragon to put on my homepage but doubted my ability to produce one. After the dinosaur I realised that I had all the elements necesary to produce the dragon.
The dragon's wings are placed on the body by the spike macro which allows them to move with the body as the dragon walks.
I also developed a simple texturing system while constructing the dragon to allow tentacles to be textured with an arbitrary texture which didn't just result in a jagged stripe.
I produced the nostrils for the dragon because it's face looked a little bare with just the eyes.