Step 10: Darken the top part of the initial arc for the sleeping dragon's muzzle. Add a small bump along the way for the nostril. Before hitting the bottom of the arc, curve the line to the right to create the mouth. The mouth is made up of a wavy line that extends to the right past this mythical creature's eye.
Step 11: Draw a series of small, V-shaped lines along the bottom of the mouth for the sleeping dragon's teeth. Darken the bottom part of the initial arc and circle to create the lower jaw. Inside the muzzle, near the tip, draw a tiny, curved line with slit underneath for the other nostril.
Step 12: Lightly sketch a line above the brow that curves to the right for the top part of the neck. Draw a series of small, triangular shapes along the line for the spikes on the dragon's neck. Make the triangular shapes thinner the farther right they are to indicate the neck turning. To the left of these spikes, draw three more spikes for the other bony brow peeking from behind.
Step 13: To the right of the eye, draw a curved line for the first part of the dragon's main horn. Add another curved line underneath to make the horn thicker. The tip should be pointy. Add a similar shape above the head for the horn on the other side. Don't overlap the spikes.
Step 14: Draw two more horns on this mythical creature using curved lines between the first horn and the jaw. You can draw your horns bigger or smaller or you can skip this step entirely if you just want the horns on the dragon's head. Add a smaller spike at the top of the head for the visible portion of the horn on the other side.