The composition works really well. I think the contrast between the crowd and the field enhances the scale of the scene. I wonder if cropping the sky out of the background might tighten the attention to the action on the field. The colours are vibrant and this adds to the richness of the scene.
My favorite place in the whole wide world...the shot is a little dark ( I have a bunch like it from my trip in June- it's hard to get a good balance when the sun is bright and you're under the deck ) Sneak down closer next time, if you can get through the crowd!