I assume the regular AI is affected by ingame score (differences). I wonder how much of that the AI replaces (or should replace) with Mastery score (or subscores) when Mastery victory is enabled.
The foreign advisor glance screen doesn't scale for my >18 civ games.
Some ingame images are smaller than expected (leaderheads in sevopedia, in advisors, other images of that size). I did set the graphic settings low, but I'm not sure if this is intended, as only random images of that particular supposed size shrink.
Can I conquer cities of size 1? Sometimes it seems to happen, sometimes they get razed.
I have one suggestion for flavour:
If I play with barbarians on, the conquered barbarian cities can change the progression of the game somewhat. I feel that it would be more atmospheric if barbarian-founded cities never grew beyond size 1, and would hence be always razed. If barbarians manage to conquer a larger city, they could hold it as-is (similar no-growth management), which would make it likely to be conquerable, which makes sense in that case. This might be somewhat similar to civ2, although it has been a long time..