Weddings are 75% of our work, with at least another 20% corporate and events (currently our new website only shows the wedding part, but we'll soon be replacing the landing page with one that directs visitors to tailored versions of either the corporate/events or weddings/portraits section).
So the feel of the card should be most closely aligned to our wedding website, but still being suitable to hand out to corporate clients in a pinch. We may have to later on develop the business card design into two related, but different designs for the 2 different areas of photography.
Our wedding website tries to be light and airy, slightly vintage. The teal, white and light brown are the colours we'd like to stick to.
A design element of our oldest business card that we don't mind (but is certainly not mandatory on the new card), was the contact details on the front, with the different types of work we do on the back: