This is by far the hardest model i did , hard surface topic is one of my biggest fear aside from sculpting a face, After watching Zbrush summit talk by keos mason ( cedric and marco ), i decided to give it a try by using their technique / approach on hardsurface which they treated everything as a organic form and from there cleaning up and building out a proper hard surface model, and the cool thing is everything is done in zbrush! the texture and render was all done in Keyshot.
Btw, this concept were done by Hunter Schulz