Osteospermum - Closeup

Ever since I got my new camera I've been taking pictures of these purple flowers in my mother's garden. Their stamens really fascinate me, they open in a very special way as seen in this picture. I've looked them up and figured they belong to the genus Osteospermum. I don't know their exact species though (Anyone?).

I've probably taken dozens of photos of these, but I'm never quite pleased with the result. I'll probably submit more photos of them in the future.

Full view advised.