Tell me about bellies

I don't get the differences between bellies. Can you guys post pix of bellies and tell me what makes them difrferent than normal bellies? Here is Paradox's normal belly:
http://i30.photobucket.com/albums/c3.../IMG_5600a.jpg

I am sorry about the size of the pictures. I keep resizing them to be small and they end up huge regardless. I will keep trying.

http://i30.photobucket.com/albums/c3.../IMG_5594a.jpg