Nice going! This seems like a good stock photo. Maybe you should put it up on one of those websites to sell. I think you might try to brighten it up a little first.
This is a good clean simple shot and I think the score isn't bad either. This is nice in BW but I wonder how it would have looked in color with the deep gold from the sax.
Nice image - good perspective and reflections. I think it would be more dramatic with a little more contrast - having the whites of the background music be a little whiter.