The most interesting part of this image for me is the slime coming out of the mouth, it's a gorgeous line and I can only imagine how difficult it would be to get with such a fluid prop. The slime on the hands is equally good though feels less like blood and more like an external slime.
The clothing here looks very much like gauze which I really like but would like to see highlighted better in the image. Also the black hair seems to generally blend into the background which is unfortunate. The hair band gives a very nice contrast and I want more of that to help frame your face. I realize the fading into the background may be intentional though.
Another oddity for me is the shine on the slime in what is otherwise a matte image. I am not sure if i want more shiny parts or to make the slime appear more matte but I do notice the contrast.