Really nice given it's your first flash and all. I encourage you to keep on learning, and keep publishing!
Great music. You managed to keep our attention with the scenes and music, plus it wasn't annoyingly lengthy. Short and to the point. And you even managed to convey emotion! Heh, it was a bad dream after all. Wasn't it?
Seriously speaking, something like this could get turned into a series. You never know.
3.5 /Effort