This a shot is a bit grainy and shot with too wide an angle lens. Generally shoot with a longer lens approx. 150 - 200mm and 45 degree angle from the jump which will shorten the perspective and fill the frame better with the horse while still getting the whole jump into the shot. I like the fact that you have the whole jump in the shot and the timing is great (hooves hanging over the back rail. Lower jumps are always more difficult to get timed right but you got this one just right
I know with these shots you have no control of the background, so I am not concerned. However you have slightly missed the arc and is makes this hunter look sloppy. George Morris would crucify this picture, but I still like it.