I enjoyed watching this. I have notes on dialog and story progression if that's of any interest. Dialog is stiff, and I think that adds unnecessary difficulty to acting. I have no offhand advice on what exactly to do with it, other than try different modes, see what works (better) and what doesn't. For example: less words; more words; one character talks, the other doesn't (kinda what was happening with Christie, but more pronounced); entirely silent scenes.
Story progression. I realise this is the second episode, so I might be off mark, but still: when Christie is being tranquilised, we don't have enough context to understand why; this might be subjective, but I didn't feel that guard wasn't sufficiently vile to handle her with force for non-violent disobedience. As I write it I realise it might've been implied that the staff is under orders to prevent Cara from drawing, which Christie inadvertently goes against, but that's not clear, and this is not the sort of thing that should have intrigue, this is the scene where we are unsure who to root for: are hospital staff evil? Is Christie or Cara more violent than we expect? The film can only afford being coy about stuff when it's clear about other stuff.
Sorry for unprompted critique.