Vocab lesson: I - Inion: the back of the head; more specifically the occipital protuberance of the skull...or, that curvy, bumpy part at the back and base of the head. (In-e-on)
I was going for a bit of backlight and rim-light.
LOL - At first I thought you were being rude about the shape of this perfectly nice head!! I've not met the words Rim-light before but this is such a good shot that it explains it perfectly. :)