Thats really nice. Not over processed, good color and nice stars. Missing a bit of blue. There are quite a few blue stars in this region but that will just be a result of over stretching in processing. Get familiar with creating star mask in photoshop and that way you can exclude strs from stretching activity as well as adjust their saturation independantly.
The very slight eggy shape of the stars can be easily corrected in photoshop. See this you tube video on how to do it
http://www.youtube.com/watch?v=SQy1O...layer_embedded
I think you have graduated from beginner section however. This image stands up well in Deep space section.