Notification Center iOS7

I did this a couple of months back when I started playing with UI design. It was way before I got drafted to Dribbble. I really liked what Alex did. And since this was really my first major UI design; it seems appropriate that it'd also be my "first" shot on Dribbble with WWDC just on the horizon.

Any constructive comments are greatly appreciated since I'm only just starting out with UI/UX.

Real pixel:
http://cl.ly/image/3A1h1b1K1U11