These are two sketches I did when i first heard of the brief I immediately turned my attention to the death side of the opposites as I thought this would be the easier side of the task to create visually. When you Think of death particularly in humans or any animals you think of the remains of the body which tents to be a skeleton of bone. I researched into skeleton structure and started sketching from that to get an idea of how it would look if it was in front of you. As you can see I'm not very good as the detailing on the face, hands or feet.

This is just a pencil drawing and shaded in in different tones.