If I’m using the word “ruined” to describe an effect, we’re probably not in much agreement, haha 😃

The mouth is ruined. Honestly, the shot shouldn’t even BE there, because again, showing Leia (much less this shiny-eyed optimistic digital Leia) breaks continuity between Rogue One and Star Wars. Edwards only hints at her in the movie up until that point, and Lucas hides her for as long as he can in his movie. Interrupting all that with a big digital Leia smack in the middle of the handoff between the two is also, in its own way, sort of ruinous.

I think the only real way to fix that shot is to completely re-do it. Someone would have to re-animate the mouth.