Step #1
First start the tutorial by drawing three rectangles & four lines as shown.
Step #2
Draw outline for arms & weapon.
Step #3
Make outline for hairs & face.
Step #4
Make eyes & neck.
Step #5
Draw shirt.
Step #6
Make outline for dressing.
Step #7
Make hands & fingers.
Step #8
Draw weapons.
Step #9
Make retinas & various vertical and horizontal lines as shown.
Step #10
Finally, make necessary improvements to finish.