I've been following Pablo Munoz Gomez for Zbrush tips and tricks. He recently launched a 5 day Zbrush Challenge, a very simplified process and I learned a lot from it. I'm a huge fan of Borderlands so I thought I'll do a Borderlands inspired concept( mostly inspired by Sergi Brosa's designs)
Sculpted,polypainted and rendered in Zbrush itself with some final touches in PS.