I can't get over how perfect her sweater/skirt/high-waist pant combinations work so beautifully. The combination of it all is so simple but yet so sophisticated. I'm using the term "sophisticated" loosely--it's not that necessarily modern and kind of up-tight sophisticated, but the "let me be your friend because you have your shit together" sophisticated.
I can't talk about just her style, though. Her music has this ability to make you feel something, despite the possible language barrier. I've taken only three years of French, so I barely understand the majority of the lyrics. Despite this, I still feel that raw emotion coming from her music. Whether it's an upbeat song or an emotional ballad, her music just gives you this fulfilled feeling of ~feelings~
I created a couple outfits on my Polyvore account that I feel embodies the style and feeling of Francoise's style and music. I'll leave you with these, and a picture from a couple of months ago of me pretending to be her. ;)