I was on pinterest and this detail (first image) of a bigger painting (second image) named 'The Jolly Boat' by Albert Lynch caught my eyes, 'cause it reminded me so much of that scene (third and fourth images) with Flint and Miranda on the run from London.
Now seeing the whole painting I can see the man is not looking behind but to the ship they are going towards (in the detail it wasn't so clear since there is also some land visible in the background), but still there's something in the facial expression of the two which definitely make me think about them. Something in the way the man looks haunted and the woman looks emptied, and they still are so close to one another...
It's so beautiful. Just like Flint and Miranda's relationship is to me.