Since they are in the critiques section I'll throw in my opinions. First off, great to see that you are dragging your camera around everywhere to have the opportunity to pounce on this one.

All the pictures are grainy/soft focus. I'm not sure if this is totally the D300's ISO 400 performance or if it's a combination of that and not being totally in focus. Maybe if you'd dropped down to an f4.0 and bumped ISO to 200 it may have been a better choice.

The camera's automatic white balance didn't help very much probably due to some lighting they were using for the show.

Other than that it looks like you captured some decent shots there.