Frieda, when she was filming Black Swan and a little after that, I noticed her hair was way lighter, but I don't think it's been the same since then. I mean, in Friends with Benefits her hair wasn't that light and neither has it in some of the events she's been lately, IMO. It really caught my attention now, though. I think it looks great, but I also think Mila can look good with almost everything!
And yes, her eyebrows are perfect!