also i find it kind of interesting (writing wise, or something) how much Blues' attitude towards Cello is balanced between caring about him, believing in him (too much, sometimes, like when she wholeheartedly assumed he could tank the hammer perfectly fine), and being wary of or even flat-out scared of him. She looks so freaked out about the idea of him being the Successful Human Experiment (I'm not sure if that's her being horrified on his behalf or if it's her being terrified of what he is), and right at the end she looks really scared about him learning his own name (presumably fearing that if he "remembers who he is" then he might suddenly turn evil).