In theater I thought tarkin looked perfect and Leah looked terrible. But when watching the blu ray I felt the opposite. Strange. Tarkins eyes and mouth look very unnatural but Leah looked fine.
In theatre I always thought Tarkin had a bit of a “Polar Express” look to him (not enough to take me out of the movie, but enough to go, “Hey, that guy looks fake,”) while Leia was weirdly on the uncanny valley (something about her nose ticked me off; her nose looked fake for some reason).
At home I still thought Tarkin looked a bit fake (though they looked like they made Krennic look a little artificial to help in blend in, or I’m losing it), but Leia didn’t seem off at all.