this is amazing!
I envy you. I cannot hope to make anything half as good as this in photoshop or blender. or maya or any other program. this is so cool. do you use custom brushes to get the texture effect on the stars surface? I really love the glow effect that goes out from the star on both sides. also the halo effect really adds to it. The solar flares on the surface also really add to the realism. You should really think about making a making of video of some of your works. or a screen capture or something.