Well, vivi's dress-up game was a help.
I decided to take my own gig at the work. Both of the characters are females.
The first one is the Philippines. I had her dress in a costume that other Philippine OCs usually wear. The hair color is similar to what Philippines OCs are.
The second one is Manchuria. I had her wear Macau's clothing. I also modified her face in Paint.net to have her scar and ahoge.
The Philippines and Manchuria OCs belong to me.
Hetalia (C) Himaruya Hidekaz and Studio DEEN.