On the front, I would go with the same font-size for your name and photography, but you might use a bold type for your name if you find it more important, I don’t think it needs it though. The design is nice and clean as it is now and I think it looks good.
Since you’re introducing yourself as a photographer, why don’t u use (some of) your whitespace on the back for showing one ore more photographs? It could be your best photo for instance or a few or just some interesting details to keep it a bit more abstract. It gives the receiver of your card a quick idea of what you’re capable of. You can still ghost or knock out your name and phone/web/email details.