Looking at the design of already existing Heroes and Villains

Here are some mood boards with some annotation of mostly game characters and one or two film characters analysing their design. The first mood boards if on the heroes and the second is on the villains.
Overall there are some interesting finds, such as the triangle mostly added to villains to create danger and fear within the design can also be incorporated into the heroes designs too. Its the same with circles added into villains design.

Heroes

Villains