That was a good for your first,
most first submissions are really bad and end up getting blammed but this was definately a passable attempt. It's clear that you have a good grasp of flash and this is a sturdy foundation to begin with.
Put a bit more imagination into your next work though, try to give even simple concepts like this a unique twist. Steer clear of predictability and try to surprise your audience with something they won't expect.
Your artwork is good, but this would look better if you experimented with some shadows, sometimes it looked a bit too bright and breezy when it should have been dark and moody.