Horror Book Cover review

[AlessandroPaolo]

http://24.media.tumblr.com/tumblr_m708u40phL1rb1w74o1_1280.jpg

Hi, I'm Alessandro Paolo
And I'm new to the forum. Looking for opinion on
the book cover for my new book "the Haunting Of Sister Mary Francis I: She'll Get You" about a Catholic schoolgirl's revenge on the bullies.

Or, tell me what do you think an ideal horror book cover should be. Input is appreciated.

-thanks, Paolo

[neverending]

The image is fine... a bit spooky, but nothing really special. There's a lot of blank space at the top and bottom. Why not put the text there, instead of over the image?