The medieval guy that has 7 votes on him is by the same artist that did the concept for this months challenge so should be easy to get permission for it.
Here's voting results thus far. EDIT::: The Conquistador is at 6 (thought it's 7,failed at counting, sry.). tied with the SciFi Powered-Armor Girl with Dual Blades at 6. The Doctor (:P) and the Powered-Armor Neo-Nazi Officer are tied at 4.