The maturing makes sense. I am curious, however, is it an overall look that she portrays (using back the whitney eg. cute) but with very different daily looks(girly dresses, boyfriend blazers, very casual-almost sloppy tights)? Or is she very constant? You mentioned colour but what about separate pieces and silhouette?
I guess I am slightly weird-ed out myself. I identify with a lot of similar looking looks that don't quite mesh in my mind. I like simplicity, lines, classic, basic stuff. I guess style icon wise, it would be something like Jo(audrey hepburn's character in funny face), carolyn besette kenedy and sofia coppola. But they're so different as well despite the same clean stuff. I mean Jo is slightly gamine/childish/boyish-cute, CBK is very casual posh(as in, even when she's casual, she looks smart and clean and neat and put together. and when she's in formal wear, she looks very comfortable and not dressed up at all.) and SC's more casual/comfortable. And then I'm attracted to the occasional bling bling or pretty dresses and patterns when it's worn on someone like clemence poesy or kirsten dunst.
Makes me feel kinda fake sometimes. Like I question if what I like is my own, or am I just following/emulating other people because there's so little consistency, looks wise, silhouette wise and individual pieces wise.