You would probably get better scores on a larger pictures. Check out the tutorial at url]//www.dpchallenge.com/tutorial.php?TUTORIAL_ID=26[/url]. You have nice, crisp colors, beautiful water.
A little smallish. I would prefer having a larger image to look at so we can see more detail as it is evident there is a lot to look at here of interest.
Hmm, you'll probably hear this a ton, but you really should take full advantage of the 640 px allowed. There is a great tutorial on the site about sizing and preparing photos for challenges (Learn