This one reminded me the "rabbit" in the movie "Donnie Darko".
In order to make this portrait and the previous one, I tried for the first time some tips given on Strobist, a reference concerning flash photography.
My flash wasn't mounted on the camera. Instead I remote controlled it using the built-in flash and hold it in my left hand in order to get a side lighting.
I'm quite pleased with the result !

Date: Saturday, October 31 2009
Camera: NIKON D300
Focal length: 50 mm
Aperture: f/4.5
Exposure Time: 1/200 sec
Flash: Fired