Very nice, you should do a big one to use as a desktop background 
I think the stars are a bit too evenly spaced. part of what makes a starry sky look realistic, I think, is that stars cluster in some areas, and other areas appear to be virtually empty. The red stars also throw me off, I know that Venus is red, but I've never seen a dozen red dots in the sky. Otherwise looks nice, the AA around the moon is pretty good.
lovely stars