Hi Rachel,
It's great that you want to implement permaculture in your yard! I believe that edible planting designed according to permaculture principles can be beautiful too and that this is a good way to make permaculture easy to digest for more traditional gardeners.
Here's a video of the small edible forest in our backyard, maybe you can find some inspiration there:
And this is a slice of our 'big' garden which I designed as a sort of cottage garden with lots of edible plants (fruits, veggies and edible flowers e.g. cherry, gooseberries, blueberries, lovage, calendula, chamomille, alpine strawberries...) mixed with plants that attract beneficial insects or have other functions such as fixing nitrogen. I especially love multifunctional plants, for example, the sweet william flowers in front (a traditional cottage garden plant) are both edible and a great cut flower, lovage in the back is a culinary herb and attracts beneficial insects:
I hope this helps, good luck with your project!
Vera