Step #1
Start the tutorial by making an oval, four straight lines & a curve line.
Step #2
Draw outline for eyes.
Step #3
Make outline for nose.
Step #4
Make lips.
Step #5
Make outline for face.
Step #6
Make shirt & ears.
Step #7
Draw retinas & eye brows.
Step #8
Make mouth & wrinkles.
Step #9
Make teeth & lines as shown.
Step #10
Draw eye lashes, beard just beneath the lips & moustache.
Step #11
Make beard all over the lower face.
Step #12
Finally, make necessary improvements to finish.