While the romance genre has expanded so much over the years, in an odd way it's also narrowed, with too many people trying to stick stories into tight, well-defined marketing niches. It can, admittedly, be a tricky balancing act, but I believe the key is to be able to step back and take a long hard look at what you do well, what makes your work different from other writers, what feels the most natural to you when you're writing.