World Odour

The latest project for my class was to make a picture using silk screening.
I've seen the process done, and I thought it would be easy.
I was very, very wrong.

Here is an attempted copy of Shepard Fairey's "World Odor" stencil.
If you're the critical sort, please keep in mind he uses an entirely different method for his pieces, and this was my first time silk screening.