For perk ideas, since you opened the door to them, I think Tessa should definitely get the Dexterous perk, and perhaps one that subtly hints at her true nature.
I also think it would be neat to see Submissive and Dominant perks added, which could obviously change based on your interactions, such as which hypnosis route you choose for Reese.
Speaking of, I saw another commenter mention it, and it did strike me as odd Reese didn't get the Onion Assed perk as a femboy, or the fact Magnificence doesn't lose her Well Endowed perk when she becomes a femboy as well, given the fact she has no breasts to admire.
I also assume the "admiring" perks will be added in the 0.27 update, given the walkthrough's changelog, but perhaps there should be more than just ass and breast appreciators, I'm sure someone in the cast likes a good dick--
Sorry about the wall of text, I guess I had more to say than I thought, lol. Thanks for considering though, I'm happy to have even a small part in this game's development!
Edit: Totally blanked on it last night but Tessa should also get the Peasant perk, since she's just a servant, and Odenval should get the Narcissistic perk when given the inheritor background. Also I could've sworn Tessa had perks prior to the Odenval update, but they seem to be missing suddenly, hence my possibly redundant suggestion to make Tessa dexterous. I guess I forgot that too, must've been really tired lol--
Oh yeah, and when you make Akarion trans in the spy route she gets really friendly in her dialogue, yet if you beat her in challenge 1 her attitude stays pissed, which creates quite the emotional whiplash in subsequent approaches.