why no mouth?
this comes up more than almost anything else. people notice the eyes first, then the wide head, then — always — they ask where the mouth went. it's not an oversight. it's the whole idea.
a mouth is a reaction

the second you give a face a mouth, you've given it an opinion. a smile says this is good. a frown says this is bad. even something neutral has to commit to a shape, and a shape reads as a judgment whether you mean it to or not. blumo was never supposed to tell you how to feel about what you bring to him.
holding, not reacting
think of the difference between someone who listens and someone who's already forming a response while you're still talking. a mouth is always halfway to a response. no mouth means blumo can just sit there and hold it — whatever "it" is that day — without reacting to it, without judging it, without needing to say anything back.
a quiet lineage

there's a small, real tradition of characters built this way — quiet, faceless or nearly so, built to be a container rather than a performer. it's not a new idea. it just felt like the right one for something this small to carry.
the eyes are still there. they're just watching, not reacting. that's on purpose too.
