Hello,
I added this mod to the end of my installation as I was keen to see what changes you had made to ToB. Without spoilers I enjoyed the mod, and found some of the writing quite moving, it definitely added some interesting twists to the ToB fabric.
On the criticical / suggestions side....
One of the quest characters conflicts with the Gavin mod story.
Not enough chaos (not tactical difficulty as such) for my liking. More demons teleporting in unexpectedly, more people to defend, some unexpected dead/wild magic fields might add to the feel of a keep under assault.
I had to CLUA myself there as Nalia made no comment in Ch9. It was out of order in my installation though.
Battles with Dxxxx might feel more personal if you're challenged 1 on 1.
EMD could be less of a combat challenge and more of a "You can't kill me because xxxxx" type challenge. Blackmail letters about your fling with Chanelle for example
One of the massive flaws of ToB is that high level play should be less about combat HLAs and more about strongholds & building a legacy. It would be nice if Reunion related somehow to earlier actions concerning to the Fighter Stronghold. If you were a great lord then people could be volunteering to fight alongside you (naturally you'd have the obligation to stop them getting slaughtered!) or lords who squeezed the keep for tax money could have content related to that.