January 08, 2009 5:07pm Technical points for you to note
Head space and cropping your left hand. Lightening casts dark shadow in your left eye and over exposed hot spot on the backdrop. Since the eye normally goes to the lightest point of an image can be corrected in photo shop.
i think you could have improved the images with a different hairstyle.
You appear not to be comfortable in that pose with your upper body posture. If that is true a uncomfortable poses impairs your ability to look casual which I assume was the intention of this image.