I wanted to learn yeti, and I thought this would be a good challenge for that. It's based on a drawing by Cory Loftis, https://tabletmonkey.blogspot.com/2012/03/montague-ratsbone-iii.html
Yeti was used for the feathers and fur. Yeti was quite the challenge, as the documentation needs some work. But once you get going, it's really great, and I do like how great the node networks work.
Houdini was just used to convert the smoke mesh to a vdb. I was also super excited to use Redshift, as I love the quality of the image that came out of it.