I think her hair has gone lighter - it might be just my imagination. But I think she changed colour and it looks less helmet-like now. She looks really nice in those pictures. She has a good style, it is just so bad that she messed with her face.
I think she has lighten up her hair colour as well!
It suits her well and it doesn't look too heavy or unreal in comparison with her previous dark shade.
If she feels comfortable with darker hair/not grey hair it's ok.
She has style and gravitas, she seems warm and she carries herself with an air... I don't know how to describe it.
Maybe it's confidence. She seemed a bit "low", a bit "lost" some time ago but now I think she has gained back her allure.