But see, that's just it. I don't think it reflects real life at all.
http://i.imgur.com/T0Ur1aS.png
With the way the cheeks are darkened, the lower portion of the eye should also be obstructed such that it's darkened, rather than brightened. However, it's as though the lighting interacts with each piece of the model without regard for the other pieces, which results in weird appearances.
