Step #1
Start the tutorial by making two ovals & shape for the upper body.
Step #2
Draw outline for arms, hands, legs & feet.
Step #3
Make mask shape as shown.
Step #4
Draw eyes.
Step #5
Make shoulder & shirt.
Step #6
Make belt & waist.
Step #7
Make pant.
Step #8
Draw hands, fingers & arms.
Step #9
Make legs & shoes.
Step #10
Draw lines over the pant, arms and helmet as shown.
Step #11
Finally, make necessary improvements to finish.