i would emulate this style.
Cameo Lingerie- Sexy Lingerie Costumes Corsets Bustiers in Regular & Plus Size
you have the basic look down. i would spend time refining the look and feel. make it more feminine... more sexy... and yes, more breast - tastefully done, of course (because that is what you are selling). and don't forget, the female breast is great linkbait. do you use models or do you have an image bank you choose from?
it's all about accentuating your product and i don't see enough of it on the front page...