The women's commune storyline added nothing to the storyline, and seemed like Campion adding a bunch of self-indulgent women to the storyline because it was a typically Campion thing to do.
And that stash turns out to be at the old Sullivan house.
And was that a slight blackout he was hiding when Anna turned up through the open door? Some interesting true story reference in the plot.
The Clone of Gillian is now working as a scientist.
When it gets closer, we can see that it is another Anna.
Anna Macy compellingly played by Elizabeth Debicki to her young patient Molly in a London hospital.