In my image, we could say that they eyes refer to situation management, and the mouth refers to emotional response. So, corresponding to my variables and values...
Angry eyes = Active/Aggressive
Straight eyes = Passive/Evasive
Sad eyes = Reactive/Supportive
Happy mouth = Projective
Straight mouth = Detached
Sad mouth = Temperamental
Now then, if we use that guide to corelate the faces with the Enneagram types, the order is as follows:
Upper left = Two
Upper middle = One
Upper right = Six
Middle Right = Four
Lower Right = Eight
Lower Middle = Three
Lower Left = Seven
Middle left = Nine
Complete Middle = Five
As I pointed out, the numbering convention that was originally used in the Enneagram seems to have no rationale behind it. I was rather disappointed to find that out, but we move on.
It is of some interest, though, that as I had said, I showed the picture to people and had them assign the type based on appearance. It did not entirely match my official assigment.
The Two, Six, Four, Eight, and Seven were typically given to the faces that I had given them to. However, the lower middle was usually made the One, the complete middle was usually made the Nine, the middle left was made the Three, and the upper middle was made the Five.
I unfortunately had only a small sample of people who actually knew the Enneagram, but the consistency of their pick was rather striking. It was too small however for me to do a follow up test, to see if the color of the faces affected peoples' choices. I was not in a position to find enough people that hadn't already taken the first test.