Xoligy: I think moving the planet would ruin the balance in the picture. And if it was bigger, the eyes would focus on the planet, and that's not the point. So I made it small and put it to the right just to have balance. Removing it would make the pic a bit boring I think. And I'm not that much for centered stuff, I like keeping it like this.

Illegal: Thanks! I'm getting better at space art, and I will probably by a tablet soon to be able to use other techniques than the one I'm using right now. Look at Greg Martin for an example. He ofte uses his tablet alot in his nebulas. I wanna do that too! :P