A great 'toon indeed!
First off, lemme say - I can't wait to see more of Stabby McGee. This flash movie of Stabby was hilarious - where the obviously wrong is made to be more horrible than a mild insult. A great chuckle!
This has an interesting style reminiscent of the Simpsons when it comes to the graphics. Near as I can tell this makes great use of shading and gradients, and the animation is also sweet.
I don't really have any critiques for you on this, so, I'll just end with, "Awesome movie! Keep rockin'!"