I am personally not particularly into her look, though I must say I admire that she and her styling team abide why what they've created. She does have an identifiable look and nowadays, it's a strong asset for a superstar of her caliber.
I don't think she should be too trend driven, though I would love to see her make a statement by really changing up that hair and go full-on natural on us. It would be a nice change.
I wouldn't mind her changing her hair here and then but you are right she has a signature look. I liked her bangs last month, not that many people could pull it off, I think its the hair color that makes all the difference.
I also agree she should not be trend driven, it's not like her to follow trends, she's not desperate to be seen in the newest looks.
While I loved when she wore the gold Balenciaga leggings, the 24'' Dolce and Gabbana metal belt and dress, the Balmain MJ jackets, the last Lee McQueen pieces as well as Vintage Thierry Mugler and so on.... her own personal day to day style is different from that, she wears statement pieces like that strictly for videos, red carpets, shoots and so on which I can appreciate.
Recently her make up looks have been amazing, she's trying out so many new things and being a bit more bold.
She looks so happy at her sister's wedding, the white dress is nice, I would have made it knee length and changed the shoes but whatever, it's a minor detail. It's not her day, it's her sisters.