I keep mis-evaluating the amount of hatred people hold for the antagonists, so I guess their demise doesn't come off as "brutal" enough. Then again, since I was the one who created them from scratch, gave them a personality, a purpose and motivations, I can never hate them, so it's always a bit complicated to really make them suffer as much as you guys want^^
I'll most definitely go over each one of the endings and add more stuff/change some according to feedback. I'll have a post dedicated for people to post their opinions and feedback on my Patreon so I can now what to work on, and I'll come check the comments here often.
My friend's brutality was not the issue, the issue is simply the lack of actual personal connection to literally every action of revenge with the exception of cel.
Zeno's death should've been poetic, the nephew killing the uncle the same way the uncle killed the brother. Letting Zeno survive and be killed by More instead strips any and all meaning away from kicking him off the cliff and even his death as well.
Edwyn's was even worse because there's just no interaction between the two like at all, there not even in the same space at the same time at all throughout the epilogue. This is bad seeing how Noah was there the majority of the time when Edwyn did something to Cel. So the revenge on the cousin being separated from no was just empty.
The mother, who's basically a main character with the daughter didn't even get a real revenge scene. Hell, even in the scene at the end there wasn't even a reveal that the guards were actually fucking the king's mother which I thought would be brought up as a fear and privilege tactic. "You do what I say and you get many privileges, but go against me, and well... this woman was the one who gave birth to me so guess what I'll do to you and everyone you cherish." The betrayal hits the hardest with the mom because well she's the mom. BLah blah blah throwing away the undying love a mother should have for their child blah blah blah.
The rest, well my personal opinion there is the revenge should spread to the entire village and they all with the exception of Meredith and the little boy, played a role in using him, abusing him, and hurting him. But I'm sure others don't agree with that so that's just me.
Also, props for listening too and taking the feedback with stride. Too many creators just ignore criticism or even take them as attack.