Using only a pencil it is difficult to create dark areas because the pencil (graphite) allows you only a certain amount of dark grey. I used the eraser to create highlights around the body and shapes.
I do like working on paper because it’s easy to manipulate the paper around. I know programs do allow to rotate the canvas. Put paper is more convenient in this. The model is a bit copied from the 3D Orc shape. Reuse of knowledge I would say.