Step #1
Start the work by drawing an oval & five curve lines.
Step #2
Draw eyes.
Step #3
Make nose.
Step #4
Make lips.
Step #5
Draw outline for ear, face & ears.
Step #6
Draw hairs.
Step #7
Make eye brows & eye lashes.
Step #8
Make teeth & wrinkles.
Step #9
Draw retinas.
Step #10
Enhance hairs by making them thick.
Step #11
Make shirt.
Step #12
Draw beard.
Step #13
Finally, make necessary improvements to finish.