Thanks for picking up the project.
Useful feedback may be hard to get here tbh, since those of us still following are so used to the original and really liked what RomanHume was doing with it all (I was particularly a fan of the subtle yet communicative facial expressions) before his fulltime job made it impossible. So any feedback we give will probably be tainted by that. Plus, you're getting into the groove of the characters yourself. So what is shown now may change a bunch as the process continues.
Initial feedback though: I like the realism of the G9 skin more. But the feel of the character is definitely different. Amanda 1 looks a little less trusting and more guarded in general, but very present. It's hard to get a read on any thoughts or expressions in the face of Amanda 2 so far. A bit blank in the first two renders. The third render, maybe melancholy and distant. But if I were looking at her through MC's eyes, I feel like she'd be looking at me as someone who doesn't know me that well and might not have the comfort level that familiarity brings. I know that feedback contradicts how I describe Amanda 1's look "less trusting, more guarded". But her expressions seem to show more familiarity with MC where she might let that guard down. Amanda 2 seems more just like "your neighbor's daughter's friend" and is harder to read.
Like I said, that perception could be tainted by familiarity with the OG character somewhat, so it's hard for me to judge how accurate I'm being with the feedback. I hope it helps, though!
As an aside, Amanda 2's model has more noticeably Asian-like features, especially in the second render. Nothing wrong with making that sort of change, but just a notable difference. I'm personally less a fan of swaps like that in a re-imagining, but for those encountering the game for the first time, it'll be six of one, half dozen of the other. Likely NBD for them.