I'll give it a good 3 and a half, because on the one hand i kind of like your style and your propoertions were well done. On the other hand I'm a painter myself and i prefer a sharper outlining. Last thing: Your composition looks a little static, the moon with the two white galaxies(?) in the background form an almost straight line. break it up a little more. But all in all, good stuff ;)
Thank you for your critique. And no the moon does not have two galaxies. To see it better her is the final. http://www.newgrounds.com/art/view/mysticskillz/mother-moon-2
Nice art work, very creative.