VERY well done, ALL of them. Really like how you have included additional touches like the markings on the helmets as well as various pouched.
You know, despite Miranda's lack of armor always bugging me, I can't say the same for Jack. Whereas Miranda was otherwise portrayed as a very pragmatic character outside her seeming fetish for "battle-lingerie", Jack was much more of devil-may-care thrill seeker with little regard for her own safety and enough overconfidence in her biotic abilities to believably disregard the need for any other protection. That said, I very much appreciated that after she got over herself and her tragic childhood so she could "grew-up" that she in turn finally put on some damn cloths, while still maintaining her punk rebel aesthetic.
I suppose as such I could see her character further evolving and in affect "normalizing" to this point, but I don't know. It just feels odd to see dressing like that.