This image submitted by Michael DaRe was taken with an Olympus E500, with an exposure of 1/640sec at f/5, ISO 640. It’s a great action shot catching a peak moment. The exposure looks good. Any good sports photographer will tell you tighter is better, so in this case I would suggest a few adjustments. To begin with the background has a lot of different lines of railings, consider using one of the vertical posts from the pen, right behind or to the left of the horse to straighten the image, the bleachers will still not be totally straight but it will look better. Secondly I would suggest cropping the headless folks on the top row of the stands to just their jeans, specifically the ones with the orange sign behind them, it is distracting from the horse and rider. You will still have spectators in view to give a feel for the whole scene. Overall this is a nice action shot, remember to make your subject stand out from the background use a wide aperture, which will also allow more light in and help maintain a fast shutter speed to freeze the action.