3 stars for an unfinished demo reel. You have great potential but if you can't finish a mini animation, what makes you believe a company would hire you based off of this? Granted your ending animation was best as I like the idea of beaming someone in the head with their own shoe, you get brownie points for that (3 stars).
You have strong potential but when you are presenting anything, it should be your best, especially with a demo reel. Taking courses at Full Sail can turn you into a callous prick, but those that heed the advice given can truly excel in their craft.
Keep at it, add some sound effects, and for god sake, change the music in each clip, adding some ambient noise would help.
3/5 solely because this piece is unfinished. A better critique will come after this is fleshed out more.
I'll be awaiting round 2.
Are you using After Effects, Flash, or another program? Photoshop/ Illustrator can help a lot with your final deliverable. Sound track pro and/or Garage band can add more to your short animations.