I love how it looks like it's resting in something very thick and gooey, quite an interesting contrast against the leaf. I only wish the leaf had more detail or was sharper.
I'm not sure this is being lit from behind. It's a great shot and the colours are beautiful but the fact it's sitting on water makes it hard to believe that it's being lit from behind. I know the sun is to the left and the leaf is not laying flat on the water too. ;]