I used Eisenhorn from Warhammer during his last phases, where the character is fully created we have two versions of him, the most recent he will be bald. But I worked in the period of these two phases. With hair and without.
Most of the concepts I made are more complex, others simpler costumes. But my idea is to be free within a credible limitation, which can be physically created. Because this version I worked thinking like a character for TV Series, figuring out several clothes and ideas about him, following his real color palette and his personality. I hope you like it.