Character Design: Villain and His Face Expressions

Following the idea of the story of fantasy dystopia with an evil scientist being posseses by a demon, I had to work on designing the human and the demon. The sheet below presents early designs of both characters:  

For the scientist I decided to go with number 2, although the demon needed some more exploration. Below is what the demon's design and his possible facial expressions: 

 Some expressions of the scientist and a quick sketch of a moment of the demon waiting for the human's soul to be possesed:

 Up until today's classes the existing idea was that after selling his soul, the scientist would slowly start changing into a demon he sold his soul to. Sketches below present the form of the combination of the scientist and the demon:

However, after talking it through with Justin, we agreed that it will be better to give the human character just small characteristics of the demon instead of changing him fully.