I haven't finished watching the video yet, but I am a little disappointed you didn't have Pierro react to Lumine. Pierro is well aware of who the sibling is because they met in Khaenri'ah .
They have to react to the fact that iguro hugged mitsuri so tight that they weren't able to separate them so got buried together. Also the fact that mitsuri lost her arms sho she wasn't able to hug iguro back and iguro got blind so she could only recognize mitsuri by her voice 😭😭
Breathing is not visible to them we just see them because of the added effects so we can see how it work the closest thing that they can see is the wing breathing bc u know? Wind