Loved your reactions to this two-parter, especially around the analysis of the turn and the deserved praise for Tallulah's actress' performance.
As ever your discussion of the craft is illuminating and thought-provoking as a performer myself.
Saw suggestions to consider reacting to Torchwood and/or SJA. It'd be cool to see your takes on those but appreciate the schedules may make this a challenge. If you were to consider doing so then I'd advocate for watching the Torchwood pilot before episode 11 of this series of Doctor Who, due to the role a particular plot point plays in those two stories.
But you won't suffer for not watching the Torchwood episode before that DW one either - I didn't watch it when they first came out.