I love it (:
Wow I really like this. Although it is simple the hair looks great. The whole creepy mood of this is very cool and the blood is probably my favorite part. The glowing eyes are awesome too.
I like the way you shaded this and altogether the person looks very nice. As I said earlier the blood looks great. I love the way you can see the light reflecting of of it You also placed the blood well and made it look realistic which a lot of people are not able to do. The shading looks spot on and there are no problems with it that I can see.
I really love the mood of this picture. I love how creepy it is and the way she is a goddess, but she is covered in blood. She looks like she is angry and you did a nice job with her expression. The dark red looks very nice against her light skin and it really helps emphasize the blood.
The main problem I see with this picture is the background. I think that the color of it is too close to the way that the hair is colored so the hair sort of blends in with the background. The shape of the eyes seem a little bit off and I think you could improve on that too. As someone said before me the head seems off. This is really my opinion, but I don't really like the way the lips look. That may just be me though, so I wouldn't worry about it.
Overall this looks very nice and I look forward to seeing more work from you. (: