Not much to do with vampires
The one thing that did seem to have to do with vampires was seeing the "Twilight" DVD. I did not like it how this went on so long. A flash being long can be good on many levels, but you have to have a lot going on if you want it to be genuinely good. The animation was fairly crude and it felt like you were imitating "Zanta Claws" with that green Santa Claus. I enjoy Christmas as much as the next guy, but you need work with artwork and colors. You should try putting on some shades and shadows.
It looks like it did have heart to it, but to make something good it needs to have more than that. You could work on the transitions as in the way the characters move. They did not seem to have much depth in that aspect. The best thing about this is that the colors and lines do not at least seem out of whack with themselves. The most impressive color effect was probably the weird rainbow thing.