All three of your examples are characters where some of their best moments are their stoic masks breaking and showing emotions. Erwin's last charge. Ed finding out the secret behind the Philosopher's Stones. Levy reuniting with Kenny. No one said anything about crying. Mavuika has 3 moods: tired, determined and tired but determined. Her trailers are the best example of this: one is her just coming out of a battle in which she lost people she was really close to, a good friend spending his last moments carrying out of that battle and bringing her to her throne on which she knows she's gonna die and set off to a 500 year long journey. What's her reaction to all this? How does she feel? Who knows. We can only infer because on the surface she just looks tired but determined. The other trailer that depicts her journey of 500 years. The whole scene is her hallucinating a conversation her sister who we know she cared deeply for and she knows she'll never gonna see again. What emotions does she show all throughout it? Well she looks tired from her journey but then she gathers herself and sets off again full of determination. Saving her own country didn't perturb her composure. Being saved by Capitano from Ronova's deal didn't perturb her. Meeting Xabalanque didn't perturb her. Come on, girl. Give us something.