Sculpted, Rendered in Zbrush. Post work in Photoshop.
The final render is supposed to be in Keyshot. But due to technical limitation; I rendered it in ZBrush instead. Keyshot is pretty rad though.
Starting sculpting from the concept is pretty typical; blocking, sectioning, and so on. The challenge is substituting the pattern he used on his illustration, the spine from the head all the way back to the tail, and the bone formation on his chest. I have to substitute that with my own design.
This is based on the illustration by "Nebezial", which is obviously inspired by H.R Giger's design for the Alien Trilogy.
Nebezial's deviantart page - http://nebezial.deviantart.com/