(Original Aiko 3 with realistic head morph)

 

What Zev0 said:

You can only directly morph Genesis' low-resolution base mesh. Subdivision will not add more detail. You'd need a displacement map for that.

But back to Aiko:

Ol' Aiko 3 could look quite realistic if she wanted, so why shouldn't Aiko 5 ?

I'm sure with the right shaders she can look 100% stylized as well.