my inviations

The invitations that I love are very different from all the ones that I've seen on here. I'm wondering if I'm wrong by having a fold-out invitation instead of a single sheet invite. Is the single sheet more formal than the fold-out one? Tell me what you girls think! Need honest opinions here! Here's a pic of the one I really want (PS-it's three pages all together...it may be two separate pictures but it is all one invitation):




Thanks!