Your character is really gorgeous. Even after the update. You are right in differences, those looks more like a twins than the same person (similarity like Alphinaud and Alisaie)
I guess the lighting and slightly changed lip shape is the worst offender.
New lighting engine is very harsh on our charcters, maybe it will be adjusted in the future, or added to system option like character lighting with the slider.
-In flat lighting (char/equipment window, barbier), face on my Fviera looks almost the same as my old Endwalker face. With right colors and face contours.
-During gameplay it depends on a light source direction. Areas, where before the character looked great under all circumstances, can now looks like a clown depending on daytime and lightsource.
-It also affect hair color and skin tone, which are rarely rendered in right color during gameplay.
For example Im using pitch black hair color and it mostly looks grey or dark brown in most lighting settings
About the animations, mine also looks different, like really different. Vieras had the most cute smiles and smirks, all gone now. I hope devs will adjust this too

It would be shame otherwise.