After my tutorial I looked at my first set of thumbnails and took my two favourite masks and suits and expanded on them to create different versions. (Again the scythe is a temporary prop).
I really like the idea of death having a neutral face or just a stuck expression and I expanded on this concept.
From above I thought about Death maybe being able to show different emotions in the animation. I came to the idea of designing a couple more key expression masks and combining them together to rotate as shown below.