Pretty much ticks my boxes...
It was well animated, lots of work put into the animation and the drawing, the sound was good, and very suitable music choice. The concept was rather bizarre, but definately original.
The only point I have to make is that some of the scenes (such as when the cow is chasing the others with the shotgun) are a little to fast-paced to grasp what is going on. So possibly making them a little easier to comprehend wouldn't be a bad idea.
Other than that, I'm rather impressed.