Before you move onto drawing out his body in more detail, you will need to first sketch in his face. Start by drawing his eyes and then draw a nose and mouth. Also, sketch out the shape of his face and then start sketching out the shape of his torso which includes his shoulders, and the rest of his right arm. When that is done you can end this step by drawing the hand and then be sure to add some darkening around the collar and sleeve cuff.