Step #1
Start the tutorial by making five ovals & four lines as shown.
Step #2
Draw face & neck.
Step #3
Make arms & nails.
Step #4
Draw outline for shell from front side.
Step #5
Draw shell.
Step #6
Make legs & nails.
Step #7
Draw lines over face, neck and legs as shown.
Step #8
Finally, make necessary improvements to finish.