Result
This week, it is aiming to add subsurface to ears and face. As human ears are commonly pinkish with thinness that slightly showing blood vessels, subsurface scattering in this case can able work with texture in similar ways. Also it stimulates when light penetrates a translucent surface like a grape, and is absorbed and scattered.


Work In Progress
It is the work in process for my model. As ears are slightly transparent in their texture, I adjusted the subsurface to create a transparent texture for the ears. Meanwhile, the texture of red veins have applied, to provide a little bit details and imperfection to my model.
Here is my reference of how to show realistic eyes with correct lighting in subsurface.

Furthermore, for subsurface of cheeks, nose and forehead.


Last but not least, adding bumpmap to lip.

Reflection
So far, I am quite satisfied with my result, I have learnt how to make my character realistic with imperfections. All of these slightly details create an unique identify for my character. Again, I believe the key to adding subsurface is subtlety with adding imperfection to create realistic face model. Overall, there are no perfect human face in reality world.