The idea of Uesu Fleet uniforms is of interest to me. I like the concept of the Uesu Fleet, and every time I play an older Yamataian character, I try to have them remember the Emperor or the plague or anything at all. We have a really cool history that's rarely ever explored because so much of it is muddled with stuff from another era, when Star Army fooled with multiverse nonsense and all. I really like Yamatai's "Rings of the Master" style backstory with old gods that turned out to be machines. I also really like the idea of the Emperor Who Left; and I've often thought of how his remaining servants would remember him.
One of my fantasies for a chapter of some Yamataian plot has always been the discovery of a small ship that had gotten catastrophically seperated from Uesu's fleet, a crew exploring this vessel and uncovering some buried pieces of history, trying to figure out what happened to this ship and perhaps also get some clues as to where Uesu's Fleet was headed at the time. I think there could be some real ghost ship vibes going on, as well as some cool moments for characters to learn something about their nation's history. Alas, I have no other chapter ideas for such a plot and my ambitions towards Yamataian plots are more towards things like starting a YNP plot that would take place in Kyoto, on the streets of the utopian metropolis itself where one is more likely to encounter a statue of Uesu than a remnant from his fleet.
Anyhow, pointless digression aside-- I often think of the Uesu Fleet's uniforms as well. What are you imagining, Wes? I've always imagined something closer to a traditional Norse huntsman's attire with some Japanese flair-- brought up to modern times with a little symmetry and the occasional zipper. As we all know, zippers are the hallmark of modern fashion. Just a quick jot of what I mean, thanks to MSPaint.
I've also considered that maybe the pants might be a hakama or straight up knee-length skirt, but that doesn't work into boots very well. So I thought some pleated white slacks could go with WWII-era Japanese Navy type stuff. I'm not an artist, so I don't think this renders more than a basic idea; but maybe you can tell me if this is the kind of thing you were imagining, or if maybe you had something more contemporary in mine (ala oldschool bodysuit uniform with some changes to make it look dated).