Over all
The animation was extremely choppy so I suggest you try to make movement between each frame shorter. I also found it annoying that there was no movement to denote who was speaking or if it was a narrator who was speaking, and not to mention the volume at which you were speaking. Like you were trying to be quiet. Well, that failed because I found myself turning the volume up and down between words, as each was at a different volume.
I suggest you try to fiddle around with your audio files in audacity or another audio editing program to raise the volume and lower it where you see fit.
I hope you take these suggestions into consideration and improve your flashes.
On another note, I'm seeing a pattern where you're dismissing people's reviews because they don't have any animations to of their own. I find this irritating.
Take The Dark Knight for example. The people asked to critic that movie did not have their reviews dismissed because they did not have any acting or directing talent of their own, but instead they were listened to because those people had valid opinions about the movie. I suggest you take a hint from the pros, and shut your mouth.