I hope they don’t try to go too far with this making Nicole a "tough guy" because she is pathetic at it. That scene in the cell today was laughable. That other woman was trying so hard to make a scared, screwed-up face, I felt uncomfortable for her.
Also, I don’t know why Nicole doesn’t have any make-up on, they can wear make-up in prison, unless they’re trying to convince us she is still despondent (which she didn’t look). But they certainly put some realism in the color of her hair. That’s probably exactly what it would have looked like growing out that dark color.