Editing: Demon transformation and colouring

On Amy's shot of Bill's face transforming, I decided to try out the skin transformation technique, using the polygon tool:

Amy's original footage:

I added a dark gradient for the background, and frame by frame used the polygon tool to add a jagged black shape slowly crawling up the face of Bill:

The finished animation:

I also added some colouring into certain shots from Amy where it was important:

Here are all the altered scenes put together in scene order. Some required more work than others. Some just required a little lighting or colouring to fit into the scene: