okaylistenHEARMEOUT. Ancient world 100% has art deco vibes. There's a seat for music/the arts. In true flapper fashion, what if Altima oversaw "speakeasy" type places, were people could be a lil' more expressive. So have an Azem in flapper-esque version of the ancient robes.
A few headcanons for my WoL. I'll just dump all the lore I have under the cut.
Lominsan Astrologians
The Lominsan branch of Astrology is still a very new and experimental branch of the secretive Sharleyan/Ishgardian tradition. Initiated by a senior Arcanist Skywatcher of Mealvaan's Gate discovering several Astrology texts and star-charts being used as fish wrapping after their daily walk home by the Fishing Guild, the novel idea of using the arrangement of the heavens as the guiding geometry and the familiarity of using astral navigation warranted further exploration.
Unlike their distant cousins, Lominsan Astrology has a heavy navigational and short-term predictive bent, focusing on extrapolating the present and past by projecting their current state onto the cycle of the heavens via arcanum and predicting their future state by backprojecting their transformation through the tabulated movements of the stars. This, of course, is incredibly math heavy, having already produced several new mathematical theories and driven at least four (4) Arcanists insane from the long nights spent in the meeting room they've barricaded themselves in.
The lack of access to examples of astrologian planispheres, arms, and even decks of cards has required Lominsan Astrologians to make do with jury rigging existing equipment into the vague facsimile of one, both out of necessity and to suit their needs. As such, Lominsan-produced astrologian arms are highly skeletonized and unadorned, and incorporate a minimum of a sextant, a compass, a chronometer, a barometer, a thermometer, a hygrometer, an artificial horizon, and a sundial, with more advanced prototypes incorporating theodolites for more precise surveying and to take advantage of the platform's stability.
They still haven't quite figured out the cards portion of it, and many either use playing card decks or navigation star flash cards to varying degrees of success.
Casting
Whereas the modern Arcanist and it's derivatives safely channel aether through amplifying geometries written in aetheroconductive inks, the relative nature of the heavenly geometries require that the user finally channel the backprojected aether-patterns through themselves and out into a usable form. As well documented in the many historical texts of the guild, this is extremely dangerous except for the most well disciplined or hardened practitioners. In all astral navigation, the observer is first and final point of reference.
A nuanced but important difference between the traditional Sharleyan/Ishgardian and the novel Lominsan branch is their method of foresight. In the traditional method pioneered by Lewphon, user attunes their aether to the heavenly movements, drawing on the constellations with help from the planisphere and sets of cards to transform it into new properties or predict the future. In the mostly-independent Lominsan method, Arcanima is projected onto the position of the stars, transformed via moving the planisphere, and then backprojected into a new form, with the future collective movements amplifying the aether's power. The upsides is that the 6 constellations aren't necessary, and any combination of the 57 navigation stars plus the sun, moon, and current location may be used. The downside is that, unless well practiced, calculations must be done via dead reckoning (really Euler's method) of multiple celestial objects. The pure computation required, even for an expert assessor, is well beyond what is reasonable while holding back enough aether to kill a man. As such, only short-term projections are possible (no more than a week, a month if lucky), greatly limiting the Lominsan branch from the far-reaching predictive gifts of their distant cousins.
Thankfully for the half-mad assessors, by performing these iterative calculations, the aether is "compressed" at each timestep, allowing them to cast spells at a similar strength to their Sharleyan counterparts. Further, by choosing different combinations of stars, different effects can be produced in replica of traditional Astrologian spells. The 6 constellations are also usable as projective stars, and were the first to be tabulated, making them go-to choices in the heat of battle. In addition, this gives the Lominsan branch much better short-term predictive powers of weather conditions than the other branches. An upside the others may find pitiful, but to the Lominsans, it's well worth the effort.