The time you put into this really shows, and I think you should be proud. You paid good attention to animating tedious and unglamorous motions, and it gives the cartoon that unique, human-touch atmosphere.
What was the experience like working from somebody else's script? Did you feel constrained, or was it liberating having more time and energy to spend on animating instead of dividing your attention between drawing and directing?
I saw Office Awesomeness last month and that it was rad, so I'm glad to see you're staying on the ball. Keep it up.