I gave this a 6. It should have done much better than this. The placement of the girl in the center was well-considered and works wonderfully to draw your eye into the scene she is viewing. The motion blur of the skaters adds excitement and the skaters in the distance and the folks waiting on the benches add to the depth of the scene. I think the reason I didn't score it higher was I thought there was a bit too much blurring of the wall in the foreground. If you cropped some of that (just a tiny bit) the girl would be dead center and the shot would really be fantastic, IMO. As i is it's a really cool and interesting shot. You should be proud of this one.
I like the movement in the skaters - gives it a good feel. Lighting is very interesting as is the slit composition. As far as deep DoF goes, you got a little close to the bannister at the bottom to make it really effective.
I am afraid this image will be generally under appreciated, however in my opinion it is superb! The composition is just perfect and the use of available light is excellent, a 10.