A 264x196 pixel image doesn't do 20" wheels any justice. It appears you may have had a problem getting the compression and dimensions right so that you could submit it. I have included the link for submitting images, while it says PhotoShop the same concept can be used with most programs.
//www.dpchallenge.com/tutorial.php?TUTORIAL_ID=26
I guess you are already getting the "image to small" comments. Check out the tutorials section on sizing. Looks like it could have been a nice shot. Hopes this comments helps.