Not terrible
This was alright to watch, but it did not really have that many things that were good about it. The thing that works and doesn't work with this is that there's really nothing good or bad about it. The sound is pretty good, but not much else. It seems like you could use a background put onto this. I know that you do not have to have the most complicated animation to make it good, but there should have been more action. It is funny to see a girl get eaten by a monster.
It looks like you may be getting better all the time. I suggest you work on having more jokes and perhaps add some color or make more of a final punchline. Short things like this can work, but they need to be more different. Of all the tens of thousands of flashes out here, you need something special to stand out. Not bad, but not good either.