This picture was done for me by starfighter
Tanaz ibn Ardach is a littersister of Harun ibn Ardach.
Whilst https://www.furaffinity.net/view/22224831/ and https://www.furaffinity.net/view/21948642/ show her at the equivalent age of 14 human years, here we see her at her equivalent age of 20.
She has a preference for the color orange. In the society of the fennekim, this color is thought of as the color of the desert just-before-the-sun-rises and just-before-the-sun-sets.
She's tasked with protecting Manfred, who's intellect and calm she adores.