First just some general observations:
I like Tereasa visually as Diana, but sometimes I feel like her delivery and facial expressions are flat and one note (some of that can be blamed on the writing and some blamed on her attempt and speaking with an American accent).
Another thought is that with this show, at least to me, it is noticable that there is a lot that happens off camera that is somewhat referenced or implied to on camera, which can throw viewers off track and can result in fans creating headcanon scenes to explain the gap/missing scenes.
Thoughts on Episode 2:
I felt like this episode had a lot of scenes that could have been omitted (a good number of these involved Kit) and replaced with different scenes that built on plot related things (Diana's Magic/the Boodk) and other relationships (Jack, Pierre, Francoise, Walter, and Hal).