How to Compose a Stronger Image
Edit out the clutter.
Know that claustrophobic feeling you get when you walk in a store that is so jam-packed that you can't even move through the aisles? That's the same reaction most people have when looking at a photo like the first image shown here. There's simply too much going on, so the eye doesn't know where to look, except away.
In the second example (click the image above), reframing the shot to include just a portion of the ride creates a much better image. All the energy of the fair is captured in the whirling chairs, and the composition is such that the eye moves around the curve of the frame to take it all in.