Do not use, copy, edit, or repost without my express permission. Not for use in ANY roleplays.
For some reason I felt motivated to do a sort of sheet of the expressions Astro can make with her optic - since, you know, she lacks a proper face to emote with. These aren't all the expressions she can make, but for now these are the ones I could come up with. And as the tiny notes at the bottom say - even though she can do these, she is far more likely to emote with body language than through optic expression, for.. whatever reason. Anger-related expressions being the more commonly seen of them. When her guard's down or she's in an environment she feels she can let go in, she's more likely to exhibit the other not-angry "faces", especially the ones where it looks closed, as she can't really see all too well when it's like that. Otherwise? You just get bodily emoting. Mostly through her ear-fin postures and motions through her helicopter blades, which are a lot like a seeker's wings as far as expressions.
I threw a few little sketches up near the top so this wasn't too boring to look at. And apologies for tumblr being fucking stupid and reducing the image quality - I'm trying to fix it but no matter what I do, nothing works.