For the hairstyles, Bioware isn't forced to put long hair like Yennefer. Personally, i'd just like a lot more stylish short hairstyles ! Not just buzzcut. Not only it remains realistic, since hair isn't an issue, but it's also aesthetic. The soldiers I see with short hair look cool, i'd like my male and female character to look cool too.
Seriously, the ony thing that Bioware needs is going on google to see what it looks like with tons of different models. I'm pretty sure that people wouldn't even mind if there weren't long hair at all with many beautiful short hairstyles in the character creator.
Also, i agree about beards and tatoos, and scars.