When Meredith and Derek are on the beach, she mentions that their child Ellis wished they had had a wedding in which she wore a white dress and he wore a suit and that Ellis had drawn a picture of this imagined wedding. Later, as Maggie is talking to Zola, you can see this picture on the wall in the background.
The episode title 'Good as Hell' is named after the 2016 song by American rapper Lizzo.