I really love the colors in this; the dark grays and blues go really well with with the white ripples and stars. I also love how the character's face came out, and the pose is really nice, too.
I'd say the only thing I'm not big on are the tails; the way the tails seem to split out in two totally different directions looks unnatural. While I'm gonna guess you did that to make it clear to the viewer that the character indeed has two tails, I still think the picture would've been even better had they stayed relatively close together and not veer too far away from each other.
Still, that's certainly not enough to stop me from faving the pic. Really, nice work.
Thank you! well actually the moon is just a stock and I used a brush for some of the sparkles, everything else was done by me though and also had to edit the moon a lot. lol Just have to find it again so I can give credit. XD