This was a 580exII on camera for fill, no diffusion. We had just finished doing headshots with much better lighting equipment, and we were just goofing around on the tracks but I liked this one. I worked on the background separately from her to make her pop a bit more in the photo.
It's cute, fun, colorful and sexy. What's not to like about it? Maybe the only improvement could be cloning out that phone line running through her head and a couple of the poles.