Lacking too much
The flash has a good loader, but when it loads, it does not automatically play nor does it offer a play button. Work on that. Once I manually play it, I am greatly impressed by the powerful use of music you have set for this flash.
I continue to stare and see a black background. Is there something wrong with my computer? I decide to close the flash and load it again, just in case. The same thing happens, so I decide to wait and watch. At last, I see some movement. It's very basic and there's very little of it. I keep watching, hoping I might see more. I see about eight seconds of darkness with grey in there which doesn't greatly impress me.
Work on creating a trailer which attracts the viewer and entices them to watch and become excited. Start with a powerful or strong introduction if you are going to do this. I have no idea what this is about and because of this, I do not like it much. So I hope these tips come of some use (although they're a bit vague) and hope you can learn and improve in future flash.