Trick or treat already

This is my current project, in a very early stage still!  It's an interior of a haunted house.  The software in use is Corel Painter.  I would like for the finished painting to have a considerable bit of texture to it, but I find that using texture in the early stages of the painting is very imprecise, and makes it very difficult to pull  the elements of the painting together (in my opinion).  So I'm switching to the rather flat airbrush tool and will worry about texture in the later stages of the project!  Anyway, Halloween is coming up, so I can't resist creating a suitably themed painting.  :-)  As usual, please click the image for a bigger view!