I like it, but there's too much motion blur.
Pros:
Is this your first flash submission ever? If is, it's really good for it being your first flash submission. The animation is fantastic. The loop is perfect, after a while I couldn't tell when the loop began and when it ended.
I think this could be a really cool flash series. A girl that is a badass fighting random people attacking her, sort of like the madness series I guess.
Cons/Recommendations:
You use WAY too much motion blur. Every movement she makes is blurred, and in my opinion that looks bad. I think you should cut down on it quite a bit.. you can still use it, but use it less. Like when she quickly moves the knife.