That heap of zombie-things could probably loose the black lines. And less vibrant colors too!
Sketch this out a few times and look at a lot of of references (http://www.horrorsociety.com/wp-content/uploads/2009/09/evil_dead_3.jpg).
Did a quick edit, softened those black lines with a dark brown, changed the pose a little, scribbled on the moon and clouds.
ME <-- --> YOU
(http://img508.imageshack.us/img508/3725/titlesw.png)(http://img9.imageshack.us/img9/3725/titlesw.png)