To create the dead face look, I mixed foundation with white facepaint to create a pale near-white face. I created the illusion of a sucken face by using light and dark grey eyeshadow around the eyes and cheekbones. I randomly added blue and purple eyeshadow patches to create bruising, plus a smidge of red facepaint under the eyes (just below the bottom lashes). I used the red facepaint to create redness on my nostrils and on one side of my mouth to give the impression of a recent nose and lip bleed.
The slit-throat effect was created easily using liquid latex, red and black facepaint and fake blood. All these items were bought from Amazon UK, and there are lots of YouTube tutorials to help guide you with this effect.
Everyone was thrilled to see the costume, and were amazed by the slit-throat effect (and a little grossed out by the hanging bits of "skin"). I was really pleased with the final results, especially as I hadn't practiced. I merely watched numerous YouTube videos!
Now, I need to start thinking of next year's costume to up the ante! Any ideas?