Could you guys estimate my current body fat percentage based on these pictures?

I am 16 years old and 147 pounds.

http://img216.imageshack.us/img216/1884/march1007fmy3.jpg (http://imageshack.us)

http://img216.imageshack.us/img216/4021/march1007siv6.jpg (http://imageshack.us)

Thanks