Thank you Fletch !
Falke is german company and this one is also a German model so may be you are right ...
another proof may be this sentence found on https://www.elle.de/models/brenda-kranz
"Brenda is also booked as a campaign star for Falke"
also she does work as model in 2011/2012 and this is another point that match
anyway i'm not 100% sure because in the portrait of these site, she doesn't look that similar ...
someone can confirm ?