Ah, Jane you used to be so hot, what happened? Wouldn't it just? Are you entering the comp then FB?
Nice work so far, perhpas you could work some of the design aspects of the back into the spine and front, which would make the overall appearence more cohesive. For example use the same font from the Barberelllaaaahhh! tag for the title and continues that awsome psycadelic border work onto the front and spine.