Photoshop :: Book Flipping Pages

Recently I accepted an offer on making a small commercial for a Online clothing shop. The add was ment to be filmed with cameras, actors and all that good stuff, but some 3 days into the pre production phase the "boss" changed his mind and decided he want's a CG based movie, aka something with computer graphics/animated and asked me if I can do it to?

Well, I said yes, regardless of the previous project recall, I see it as an importunity that might get me some future projects and ofc experience. Anyway, I did some research and decided to make a Photoshop animation. Was my first time using Photoshop more or less, but I managed to make it look decent in about 3 days time.

However, I am missing an important effect that I was requested to implement. Which is:

A catalog/book that is flipping trough pages trough out all the add and the book/catalog needs to have specific pictures as the pages.

The background should be transparent because I would shrink the book/catalog to a smaller size to fit it top middle of the screen, and a, for example, green square background on my main composition background, which is pink, would look very bad. If both The book/catalog and main composition backgrounds would be solid white it would work.

I know there are ways to do it in 3d max, After Effects etc.