Answering this as it currently stands, from the pages I've drawn (even if I haven't posted them all yet).
Does Grassblades pass the Bechdel-Wallace test?
1.) Have more than one female character (named+spoken lines)
Yes. Akane (who, uh, doesn't speak for story reasons), Chouko, Lady Watanabe, Kazue, handful of yet-to-be-revealed female characters.
2.) That talk to each other at some point in the story
Yes. The first thing Kazue does when she turns up is speak to Chouko, and the various other female characters do interact.
3.) About something other than a man
Yes. The first conversations between women in my story (Kazue-Chouko and Chouko-Lady Watanabe) concern things like meetings and duty and new missions.
Any PoC women?
Yes! There's Kazue for one (she's the one in the first panel on this page), though honestly, most of my cast are intended to be PoC, though some are less obviously so than others.
(Note: I'm calling it the Bechdel-Wallace test because that's what Alison Bechdel herself wants it to be called).