Your Diploma Portfolio should show in which areas of Permaculture each design work was carried out. The Permaculture Flower is a holistic concept displaying the seven domains of Permaculture. The evolution of your Permaculture design work often connect these domains. Your completed design work (10 desings) should cover all the domains of the Permaculture flower. You don’t need to do a separate design for each domain within the flower, but your portfolio should cover all domains. (A design can cover more than one domain.)
If you already started your Permaculture diploma journey working with the older design categories, that’s fine of course. Talk to you mentor about it if you’re unsure.