High/Low - This photo is perfect. The shoe looks GIANT, but awesome. It's not so distracting that you can't understand what's going on. To me, it could be a clever fashion ad for the shoe, in a way. I also love the fact that it is in black and white because I think the contrast works in its favor. The shoe definitely looks larger than life and makes the viewer feel small.
Tadpoles overhead. Overall winner, Category winner: Ecology and Environmental Science. Tadpoles of many anuran species come in high numbers, but not many make it to adulthood. Here a group of common toad (Bufo bufo) tadpoles is seen from below by Bert Willaert, Belgium. It was shot with a canon G12 camera in a Recsea underwater housing and a Dyron dome port.