To speak technically...

You may notice these faces bear little resemblance to the originals. I made a blank version using the base out-lines. I don't know if this is bad practice, considering the original is no longer available, but I present my base edit to the AYW Yazaport-rait base below.

Basically all I did was erase the features of the face and smooth out the shading so it's all one skin tone and one outline and it's easier to alter freely.