Not bad
Graphics- the figures themselves could use some work, but your claymation is very smooth and fluid. If you had some better models to work with I think you'd be a great claymator. The backgrounds of the room and stuff was also very well done. You even had some sort of lighting set up. Very nice job.
Sound- It was extremely quiet and wasn't timed well with the flash. Work on that.
Violence- the zombie part was too quick and the ending could've been gorier.
Humor- the plot is extremely cliche and overused. I could see the ending coming from a mile away. I liked the little bone though.
Overall- I'm not a huge claymation fan but you are better than most. Better than Knox, at least