Very nice!
This is well done, period -- not well done for a first Flash, but it is very, very good. What I like about it is that you maintained the dream-like quality through the visuals through better than average animation. You didn't reply extensively on tweens, but mixed it with frame-by-frame work that makes this piece shine.
I also like how you chose a different subject matter, and avoided some cliches and subverted tropes as well. As a result, even if I am not sure of the deeper meaning of this dream, I can follow the story that is told, an original story that is open-ended enough for the viewer to intepret. It's a wonderful change from being drawn by an author's derivative narrative.
My biggest criticism is that the sound quality is a bit low. That and there are some points, such as when our protaginist is extending his hand, that the visuals aren't as well composed as in the rest of the short movie. Nevertheless, this is a good Flash entry.