The concept is not mine, this is part of a much bigger project. He’s supposed to be some sort of magician that allures people in his game in order to control them.
I used mainly Cinema4D, Maya and ZBrush for modeling, UV and textures, Vray for rendering.
Some useful resources:
HDR maps: http://www.hdrlabs.com/sibl/archive.html
Dust, fingerprinst, etc: http://www.reallyjapan.com/blog/tutorials/dusty-textures/