It just bothers me that each hairstyle looks like it's under different lighting or is made of different material. Even though they're all under the same lighting, and supposedly the same hair swatch. :\
If we want all of the one light blond swatch to have the same tone, then so long as it's consistent across the hairstyles, then OK. But it's ridiculous that some hairstyles within the same swatch are darker/lighter than others, or more/less reflective, and tinted differently — for example, yes, blue. Just my opinion.
Your "actual black" picture looks fantastic. Yes, please. ♥