I've been focusing on hair and lighting since the last post. I don't like to use HDRI in my lighting, although I do enjoy the specular highlight on the hair in the second image. I've started blending just the specular value from the HDRI into the overall lighting. I'm going to model a few more items for the project: sunglasses to prop up on top of her head, more realistic hoop earrings, and a simple necklace or two.