Awesome. I love the deep blues. The only thing that seems a little unrealistic is how all those bright stars have the same "plus" shape. I still think it looks amazing regardless. Keep up the good work!
² Great shades of blue used and love the look of it where the brighter spots are. The stars don't really bother me actually, most of my attention is drawn to the light sources I also like the way you added flow, like that trail you gave the planet