Okay several things have been changed.
1) I sharpened the transition between planet and background on the dark side. Its not perfect, but its a little better.
2) Engine glows are more blended and I used a dodge layer to make it glow a little more.
3) More ships in the background and all have some engine glow.
4) Dark was impressed with my nebula, which wasn't mine so I made my own nebula and for the first time ever, I think I succeeded in making something I like. I hope you like it to. You might not even be able to tell the difference. Oh, and the stars are brighter.