After reading all comments....
...I guess I had to leave a real one. I don't really understand how people can hate this so damn much, or why they keep returning if they actually hate your work. The best way to make someone get worse is telling him/her "u fucking suck learn 2 draw >:(". It's sad, really....
God damn...
Now, to the art: I like it, it's not perfect, but I still like it. What I really would like to see is shadows (I know you have some, but it needs more and darker) and better light effects (thinking of the scythe now). The hair looks good, needs a lot of darker lines to give the impression of real hair though. Her left leg should be a little longer, and I think her horns should be slightly smaller. The cloth should be more affected by wind and movement, and have very much shadows to strenghten that feeling. I like the facial structure, kinda chibi feel to it, and the hands are ok. Good work on her breasts, they look nice ;)
I think you should do lineart instead of filter effects for a background, or atleast add a platform she's standing on or something similar instead of having her flying there. And have a darker background, it's the background that's standing out now, not her.
As I've seen on a few responses, you're trying to find your own style? Then I'd suggest you to stop drawing anime and try to be as realistic as possible, then drawing more cartoony after a while. Somewhere between those two you should find something that works well for you :)