I used the idea of Dorian Gray....he stayed young as long as he did not view his portrait, which he kept covered. As long as he did this, his portrait aged and he did not.
Start by finding and printing a set of evil eyes...you can find many choices on the Internet. Print and position on your existing picture on top of the glass....tape and then throw a piece of dingy looking fabric over the picture - cut a jagged slit over where the eyes are positioned so that they can glare through and walah....an instant spooky portrait. Tea stained muslin would be a good fabric for this as well.
Join our hostess Susan at Between Naps on the Porch here, for other metamorphosis projects from so many talented bloggers. Happy Halloween!!
All the best,