Step 11: Draw a curved line above each eye as the top portion of Shadow's furrowed brow. Inside the curvature of each eye, draw a small line for detail.
Step 12: Inside each eye, draw a long oval for Shadow's irises. Inside each iris, draw an even smaller oval to represent glare. Under each glare oval, draw a half-oval and shade it in for the pupil.
Step 13: Use the horizontal construction line and the lower part of the main circle as guides to draw Shadow's muzzle. The line for the muzzle dips below each eye and rises behind the nose.
Step 14: Darken the left side and lower right side of the original circle to complete Shadow's face. Draw a small curved line for his mouth inside the muzzle.
Step 15: Use the initial lines on top of the head as guides to draw Shadow's ears. Make the side curvier and draw a triangle inside each as inner structure.