Ok. There appears to be a lot of new players from after everything happened over the last year. So I'll try to help you guys understand.
June 2018, I created Lexi and updated three times between June and early January of 2019.
In January of 2019 I was found to have a heart condition that required me to receive a transplant. At that time, I left Lexi in the hands of another team member who was suppose to continue it's development.
April 2019, having never updated Lexi, that team member found Jesus and quit, but not before deleting all the files from our Google drive.
On my rig, I still had the shapes of the characters documented. I did not document the materials (skins, eyes, etc) that I used because after creating the models, I uploaded them to the Google drive and figured they would be safely backed up there. Unfortunately a couple months earlier, my HD had gone bad. I had backups on Google, so no big deal until that team member deleted everything.
At this point I was still waiting for a transplant, so I brought in another person to continue Lexi, and I started recreating the models from my documentation. That person did not work out, as they too, did nothing with it.
By the time September of 2019 rolled around, I had already had my surgery and mostly recovered, so I decided that I was well enough to continue Lexi.
There you have it. So it's not that I've changed the models, it's that I'm still trying to make the recreation of them look like the originals.