A well earned 9...
At first I thought this was water color. Especially when I was looking at the earth. And I could see others making a similar perception. You have done some pretty nice work on the planet itself. I also like the space. you have a but of a hint of some blue and green floating through space, giving it a much more mystical feel than a solid black. Also the mixture reminds me much of the Hubble images that NASA releases from time to time.
I tend to get lost in the majesty of the beauty of space and spend hours looking at images and the stars themselves from my own porch. But even will all that time admiring those distant lights, I have never been able to reproduce their beauty on canvas, paper, rock or a monitor. And here, in this simple, abstract form you have produced, you have seemed to capture something that is still elusive to me.
Moving on from my more sensitive self (BACK IN TO YOUR CAGE DAMNIT!). I think you have done a pretty solid job here. One thing I really want to point out is that this seems to have a bit of a texture to it. Even the planets seem to be a little raised. off your canvas a little. And it even seems like you have a rough bumpy texture other places as well. Although that could be the glitter that I suspect you used.
Speaking of, what did you paint this on? Cardboard or wood? I'm thinking wood cause I think I see some of of the texture poking through.
One of the things I think that could be adjust with this is the actual lighting. It seems like you had a bright light on when you took the photo, and it is reflecting off the piece kind of badly. You should take a second shot and try and get a more even lighting over it to prevent such a harsh glare.
So sweet man, Keep it up.
You should upload the one you prepped with the tarot card backing and such so people can see it as well.