Step #1
Draw an oval & Draw line as shown.
Step #2
Draw outline for tail & Draw lines as shown.
Step #3
Draw outline for shape as shown .
Step #4
Draw window shape as shown .
Step #5
Draw lines as shown .
Step #6
Draw tail & Draw shape as shown.
Step #7
Draw legs .
Step #8
Enhance drawing .
Step #9
Make necessary improvements to finish.