One of my favourite pieces I worked on on heroes - I blasted this out in a week and it just fell into place really easily, which definitely does not always happen!
I worked in a completely different way to usual, blocking in the shadows to build up the details and then just filling in the rendering where I needed to.
Azmodan and Raynor skins concepted by Samwise Didier, Nazeebo by Jason Hasenauer - https://www.artstation.com/jasonhasenauer