I decided to make EDI look more human and less robot-like. I've given her hair, ears, eyelashes. I took Ashley's original hair and took it to a barber, then made that EDI's hair. Changed the material settings on her scalp so it isn't shiny. Her "skin" remains shiny as part of keeping her synthetic looking, just more human at the same time.
This is EDI after my latest update. Her skin is no longer glossy, her "hair" is dark. I've also improved her mouth weighting and textures so you can see teeth and tongue when she speaks.