My 2 cents on the mod:
I loved the mod as well. JC's writing is pithy and concise, and takes Nalia to a deeper level, with philosophical discussions thrown-in. The take care of Isaea quest was nicely done, without any angsty, prolonged revenge speeches. The fight was a bit anticlimactic in difficulty but then Isaea is a down-on-his-luck slaver, not an archvillain.
The eavesdropping on their conversations was a nice touch as well - it occupies the player's mind with how Nalia's father was, and even allows the PC to guide Nalia's view...great dialogue options. In general, you've covered all the dialogue response types, going beyond the nice/nasty binary muddle-throughs. Forced me to stop and consider each of my options, which is really great writing.
I did feel, though, that Nalia came across standoffish in the first two-thirds of the romance. Maybe it's the lack of voiceover( which is not your issue, of course) that contributes to this. Nalia's venting of anger at Isaea after the funeral was, for me, the highlight of vanilla Nalia, because she appeared to be breaking barriers - a powerful moment, I felt. Nalia's response to her father's death, and her subsequent offer to pay you - a bereaved girl putting away her grief, steeling herself, was another.
Nalia's not a demonstrative person, but her personality does peek through at times in the original game. Some more emotional( but not angsty) moments would've been better. Also, some curiosity about the Bhaalspawn curse, she being a mage, trying to heal the one she loves, would have been great.
All in all, though, a great mod, and I sincerely hope you find time away from Broken Hourglass( for which I wish you the very best!) to finish the ToB version. A big thank you to you and Kulyok for the hours of enjoyment