Too much grain. And by not showing more of the ground, you take away some perspective away from the catch. And there is a tad bit too much motion blur.
Artistically lousy, and I'm sure you know that. High ISO grain, background clutter, etc. However, this needs to be evaluated as what it is, sports photography. What this is is a very good capture of a moment that cannot be repeated. It would look just fine printed in a newspaper. Gets an 8 from me for what you accomplished. I expect you will get creamed by others, however.