Pandora Hearts 16 cover?!
(according to Amazon Japan)
Is this the actual volume 16 cover? If so, OMG... No chains? Flower confetti? RAINBOW title?? Such a huge emphasis on how different Leo is from the other characters!
It might just be an early prototype, but it sure looks like the official format.
Bigger Version of cover
Drama CD cover
(thanks to arya3087 for links)