Wow David, that's a very fine image you got there - nice colours and great detail!!
Hey, you must have learned some great tips from the
master!!
Mikes right, your stars do have a
slight sharp edge to them though - a minor critique. It might be a bit too blue too, but that could be a personal taste thing. The good news is there is more nebula extension in your data - do a quick shadow highlight and I'll bet you get a surprise.
Cheers, Marcus