Many people missed the point.

Rating: 10/10 (14 January 2019)

I could talk for hours on the sheer brilliance that is Olivia Colman. She is one of the strongest actors of all time, and does not get the recognition she deserves. Rachel Weisz and Emma Stone are also unbelievably talented. I loved the film; I'd say it was the best picture of 2018. From reading reviews, I can see a lot of people are critiquing the ending, but I think it was really quite effective. (Bare in mind, this is simply my interpretation of the ending, it is not necessarily what Lanthimos was aiming for)
So in the final scenes, we see Sarah leave, and Abigail become Anne's new lover. The final shot is three superimposed clips; one of Anne, one of Abigail rubbing her legs and one of the rabbits. It's rather long and honestly quite disturbing. So, to break it down, we must look at the previous sequence. Abigail is living in luxury, attending outrageous parties and spending time with every man other than her husband. It's clear she never loved the queen; she only pretended to in order to increase her status. Queen Anne replaced her true love (Sarah) with Abigail, someone who would apparently do anything for the queen's satisfaction, without asking for anything in return. In short, the queen chose the wrong girl; Sarah gave her tough but true love while Abigail faked it the whole time.
Abigail succeeds in regaining her status, but as we see in the final shot, is still merely a slave to the Queen's needs and pleasures. Abigail is stuck in this role, while Anne is stuck with Abigail a woman she knows deep down does not truly love her as Sarah did.The layering of the women's faces reveals they are bound for a meaningless life of dissatisfaction and falsity. The Rabbits, a representation of Anne's 17 dead children, echo Sarah's replacement with Abigail. The rabbits unsuccessfully fill the hole created by the deaths of the children, while Abigail does the same to the hole created by Sarah's dismissal. The layering of the shots suggest Abigail is just as special to the queen as one of the rabbits and holds no real power in the palace.