Second attempt at Vuvox (Looking for Feedback)

I recently finished my second attempt at a Vuvox collage (the first to get put up online by my paper) and I was hoping to get your feedback. What works, what doesnt, should this have been a soundslides, how can I make it clear to users that they have to scroll, or is it clear when the presentation starts to move when you put your cursor over it?

It can be viewed on our page here.

Thank you for any help!