Revolutionary Army

To give a little spoiler about the project I'm working on, the two characters are Revolutionary Army. On the left is my original character Wolfgang Kauffman, who leads the Revolutionary Army. As a runaway slave, He watched his colleagues die so many times that his hair tunning white. but I left behind a black hair meaning he had a little hope for humanity. On the right is a character designed by a friend. I drew it by my style together for consistency.