Almost done guys, here is where it starts to get complicated. Start this step by drawing the bone like spines on the back like so, and then begin sketching out the arm and hand. Don't worry about adding the detailing yet, you will tackle that task once you have drawn the spine bones and arm properly. When you feel confident that you can proceed on, begin drawing the definition and detailing. As you can see the body appears to have exposed muscle tissue. Sketch in all the detailing on the spine, arm, and hand like so.