Step #1
Draw an oval & six point shape as shown.
Step #2
Draw the neck of the guitar as shown.
Step #3
Draw the outline for the guitar's round portion.
Step #4
Draw the outline for the fingerboard.
Step #5
Draw the outline for the tuning head.
Step #6
Draw tuning nuts.
Step #7
Draw three more tuning nuts.
Step #8
Draw small circles at both ends of the guitar.
Step #9
Draw Small Square in between the guitar.
Step #10
Draw several lines over the neck of the guitar.
Step #11
Enhance the guitar's neck as shown.
Step #12
Enhance the neck further.
Step #13
Make necessary improvements to complete the drawing.