This has to be one of the better tales of blue on blue I've read. I especially like the oil and water personality that either Order had. Xanae's was one of ruthless order, even if it hurt the very people the Blessed Sisters were formed to protect, mostly unyielding, possibly even uncaring.
Then there's Mar's motorcycle sisters, who gave me visions of Sucker Punch and other Grindhouse like flicks, with these irreverent sounding badass women gunning their bikes and eager to fight, but still having some cares to give. A really great contrast. Ride or die, my sci fi!