Sculpting, Overview

With the new Topology you will find Sculpting to go much more smoother, and the amount of detail you will be able to produce will be staggering.

Since the plan is to only use 5000 polys for this model in Maya, what we'll do now is go all out in ZBrush, and raise the Polycount as high as you deem necessary to get all the details you want on the model, why?

Well we are going to use a method called DISPLACEMENT MAPS, what this does is take all the information from the Polys and puts it onto a black and white surface, this is even easier if you have your UV maps assigned correctly, but we will cover that in the next bit of the tutorial.
 For now I just want you to go all out with the details and don't hold back while exploring all the different Brushes and Alphas, and utilizing the Masking methods (don't forget about the >X< symmetry).

 This part unfortunately cant be show how to do without a proper Video footage, so the next best thing is to show you what I did on mine by showing you the pictures of the end result;

(PS. there are not so many details on his back due to the type of footage he will be on, so I didn't want to lose on that aspect)

Fell free to take any references you want From these images.