Step #1
Start the tutorial by making an oval & four lines as shown.
Step #2
Draw outline for eyes & nose.
Step #3
Make outline for lips.
Step #4
Draw outline for lower face & ears.
Step #5
Draw hairs.
Step #6
Make eye lashes & wrinkles over the face.
Step #7
Draw beard.
Step #8
Draw shirt & headphone shape as shown.
Step #9
Finally, make necessary improvements to finish.