[Ragnarok]

I agree with Narf on the lighting on the large planet. The way the sun is being blocked by the other object would effect how it is shining on the big one. Also on the large planet it looks like part of it is just missing...I imagine you are trying to create the effect of it being dark that side of the planet like it should, but the fact that you just see through that area into starry space and not a almost pure black, with lights in the mix as well, dark side of the planet makes it seem like half or part of the planet is just not there. You did good on the other planets on doing this, try to recreate that on the large one. But overall a nice image for a first time shot at it...