Once the basic shape is done, start to draw in the face. Add the eye. Since this is a profile drawing the eye should be positioned at the edge of the rough circle from step 1. Draw in the horn outlines and put in the nostril and a tooth if you want to. The tooth can be anywhere along the mouth, actually. Its up to you, but I personally like it curved upwards near the end of the mouth. Thicken the neck lines.