Project "Syndrome."
Why even ask for comments or suggestions if you don't take any of them in a positive way. 
In my opinion, the relatively poor quality of the textures on the planets quickly ruin the realistic feeling it looks like you were going for. As well, the smaller planet in the foreground is bland, flat, and blurry.
In further response to you not using tutorials, I doubt you taught yourself how to use Photoshop and make scenes like you do now without taking notes or tutorials from other artists.
In my opinion, the relatively poor quality of the textures on the planets quickly ruin the realistic feeling it looks like you were going for. As well, the smaller planet in the foreground is bland, flat, and blurry.
In further response to you not using tutorials, I doubt you taught yourself how to use Photoshop and make scenes like you do now without taking notes or tutorials from other artists.
Kirk wrote:Now Zoolander, there's a hit.