Step #1
Draw an oval, two circles, outlines for horns & shoulder.
Step #2
Draw outlines for face & neck.
Step #3
Draw outlines for eyes & eye brows.
Step #4
Draw outline for nose.
Step #5
Draw lips.
Step #6
Draw horns.
Step #7
Enhance drawing as shown.
Step #8
Draw teeth & retinas.
Step #9
Make several lines at face.
Step #10
Draw upper body clothing.
Step #11
Draw inside shirt & button.
Step #12
Make necessary improvements to finish.