Concept is taken from http://zacretz.blogspot.com.tr/ .... I think this guy is awesome... I changed it little bit...
Base Mesh modeled in maya, detailed in Zbrush and textured in photoshop...
Pen and Ink sketch done at nominally A4 size.
The image was scanned at 300 dpi, then loosely digtally painted in Photoshop CS6.
Image by NGI Design Visualisation
Ph: 61 7 3393 5338
nigelgough.com/