His kimono, by gofuku_ohnoya; her yukata and fan, by Miwa (akakage on DoA). The fan has a verse from The Tale of Genji written on the back, in a beautiful flowing script. I suppose a samurai would take off his swords before relaxing in the garden on a summer day, but some of us didn't think about that in time.
Note to self: trying to take pictures on the east side of the house in June, after the oak trees have leafed out? Doomed.