How to approach the volume
It´s important to break the body into different volumes. Simplifying into a basic structure so you can play around with it without restriction.

Basic anatomy
Printing that into the work helps to reach gesture, weight and the energy contained into the body.

There are many ways to approach sculpture and the materials to use. All of them are probably good, but I think understanding what they are helps you to make choices to get results. 

Learning from other artist’s work is always good because it gives you references and understanding of what you are doing and where you want to go.

The goal
Have a closer idea of the forms and the function of the body.  Also, a wider understanding of sculpture, not only in practice but also the technique so you can use it for upgrading your skills.