PS: I lost Halsin in that fight so I reloaded and killed her again just for good measure.

In all seriousness, just going by your screenshot as I have yet to have a conversation with her myself, I don't think she is a good representation of a female Drow from Menzobarranzan. First off, her hair looks like she has a mop on her head. Hairstyle is important and a mark of standing in Drow society. She looks like a male with shoulder length hair. No noble female Drow would wear their hair like that. Also, her skin is far too pale for a Drow. She looks like Astarion without the curls. Drow are called dark elves for a reason.