Kiama
I have to agree with AJ. Although I like the premise of this deck, every "goddess" looking exactly the same in the face no matter what the cultural/ethnic background and looking 18 even if they are shown with gray hair. It just makes no sense. This should be called the "Maidens Deck" or the "Sophia Deck" as there are no true Mothers or Crones, and certainly no "Pistis Sophias", represented.
You can now see all the cards online at http://pistissophiatarot.com
The Goddesses and figures we have chosen to represent in the cards are depicted largely as they are in the original texts or worship. And it just so happens that mythology has far more younger Goddesses and female heroines, folkloric figures, saints etc., than older ones. However, some of the older Goddesses in the deck include:
The Fates (Wheel of Fortune): http://pistissophiatarot.com/major-arcana/x-the-wheel-of-fortune-the-fates/
Hsi Wang Mu (Seven of Coins): http://pistissophiatarot.com/minor-arcana/coins/seven-hsi-wang-mu/
Demeter (Five of Cups): http://pistissophiatarot.com/minor-arcana/cups/five-demeter/
Baubo (Nine of Cups) http://pistissophiatarot.com/minor-arcana/cups/nine-baubo/
La Befana (Ten of Wands): http://pistissophiatarot.com/minor-arcana/wands/ten-la-befana/
Grandmother Spider (Adept - King - of Cups): http://pistissophiatarot.com/court-cards/cups/adept-grandmother-spider/
We have also tried our best to depict Goddesses with facial features that fit their ethnicities, and the reason why the deck is called "Pistis Sophia" can be found here http://pistissophiatarot.com/about/the-title/ (also, Sophia herself is our High Priestess card.)
As for "true Mothers", there are plenty of Goddesses in this deck that are mothers, some depicted as such, including Xochiquetzal (Empress) and Erzulie Dantor (Seven of Wands). What we wanted to avoid, however, was having Goddesses in the deck that were dictated by their biology, and we tried to choose the Goddesses for the card based on their myths and worship. And it's actually amazing how many Goddesses weren't worshipped for being Mothers.
Anyway, I personally hope that this deck is at least a step in the right direction to bringing some academic soundness to studies of the Divine Feminine, as opposed to decks such as the Universal Goddess Tarot, which I feel commits the crimes mentioned above to a far greater extent than the Pistis Sophia