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Lighting is interesting, but I'm one who's not against blown highlights, and you've got more blown highlights than the Indianapolis Colts football team this season. If you're going to blow highlights, I'd suggest a dark shirt. Even better, long sleeves. Change shirts, do the same setup, and see what happens.
Just a nit, but your left hand comes from nowhere. When you crop like that, it's like there's a floating hand that doesn't necessarily belong to your body.
Now get down and give me 20! :-)