The bald-looking head may be a red herring. If we look at Yun's face from the front, his hat hides his hair. Also, in a silhouette, you would not see the brim of his hat. The shady character also seems to have prominent ears, just like Yun. I did some high-tech sleuthing by blacking out Yun's face in an illustration and flipping it horizontally. I think that if we could see behind that select portrait, we'd find a ponytail. What do you think?