untitled

In general, it's a nice work.
However ther are some mistakes or strange details.
1) The planet is nice, but the dark side is too light.
2) The planet texture is a bit strange...
3) The moon of the planet is too small! Please, made that bigger to make better the rendering.
4) What's the light stripe? A ship? But it's too big respect to the planet and too light.
5) The nebula you implemented using specific brushes, right? It is quite well known, because the brushes you used to gently fade at some point, but then all of a sudden stop, do not fade. The boundary between the brush stroke and the remains of the image is very evident in the part beneath the planet, but also next door. Try to solve this shortcoming to make better rendering.