Not that great...
If your a noob at Flash, then good job. If your not a noob, then this sucked.
I like the fact that your an Iron Maiden fan though, so I guess I will give you a "4" for this. Iron Maiden is my favorite music band of all time and I worship the band. In fact, it's the only music group I listen to.
Behind that though, this Flash sucked. You need to make your Flashes longer and they need to have more effort.