My main motivation is putting together a version of the character that would blend the classic comic book version(s) to a somewhat realistic rendering.
At the time those images were taken I thought the head was good enough. As I made progress on other parts, I decided to to make improvements on it. I'll post some pictures later.
Back to that " early version ". I couldn't wait and did a paint test. It would prove not smart, later on.
One of my intentions is also to make the best of all the foam left-overs I have or will generate fabricating this costume. For example, the dented trim of the eva foam square I bought could be used for parts that would not be in the spotlight, like the neck junction.