Organa in general is a tricky character; I wanted her spotlighted because her connection to Leia will allow the audience to connect with her quickly enough. The real complex aspect is making her (and to a lesser degree Bail) have enough qualities similar to her daughter so that in a sense you can see where she gets a lot of her personality, without making the former seem like a copy of the latter.
What I'm leaning towards with future drafts is emphasizing both a hint of professional condescension (she is a Senator traveling with a strange njedi and two backwater strangers after all) but also sense of melancholy about what's going on with the Republic. You do see a bit of that Organa snark that Leia adopts, but there's also a sense that Darelda is bottling up and repressing more than her daughter ever does.
As far as female characters, that's really a reaction out of the fact the originals are wildly imbalanced gender wise. Having both Carima and Darelda as main characters was a way of mitigating that, as well as the roles of Bracett and especially Phakerem.
Really the Mandalorian Coalition was designed to ideally work as antagonists while still being contrasting with the Imperials. The Empire is uniform, made up of cold steel, human as well as male centric, and above all a sense of professional efficiency.
The enemy in my prequels made up of Kwade's forces and the Mandalorians is by comparison a patchwork alliance; filled with stolen ships, conflicting agendas, and a mix of different alien criminals as well as clones of all types, with only the shared appearances of the actual Mandalorians providing any real consistency.
They are threatening, but while the Empire embodied the cruel, crushing boot of military fascism, the Coalition signals dominion of decadent despots like Kwade or the violent and radical galactic planners like Phakerem (who in the next episode is seen formulating and initially implementing a Great Leap Forward-esque reform for their occupied territories).