My brother saw this and asked questions about the background. I told him it was Eight’s TARDIS, showed him some pictures of it, and said it was my favorite. He answered “oh, is it because it looks like something from Myst?” AND HOLY SHIT HE’S RIGHT. I NEVER REALISED HOW MYST-LIKE THAT TARDIS LOOKED UNTIL NOW. That explains a lot.
Doctor Who (c) BBC
On the other hand, the story coming right after Zagreus is my favorite so far, and I'm curious to know your opinion on that one, because it's also an extremely polarizing episode.