All aspects were modeled using ZBrush, and the final touches were made using Photoshop. This work is based on a 2D Illustration by Glenn Arthur.
www.glennarthurart.com
Final image. Modeling in ZBrush. Composition made with Photoshop. Textured in ZBrush too, using polypaint
Original work made by Glenn Arthur: http://glennarthurart.com/pages/2010