I'm trying to mix Eternal angularity (and crystalwork) with more organic (almost demonic he he) shapes of Nemesis. Those choices are based on actual lore, development snippets (where Eternal assets are called Raanaar) and my headcanons (like Raan being one of Amadia's demigod children - that are a real thing in the lore).
The armor (and consequently architecture) is modeled after the concepts and sentiments of the European Renaissance. Raanaar consider themselves heirs to the long-gone Eternal civilization and try to 'mimic' the style, that ultimately evolved to accommodate the regional and utilitarian needs. There's also some 'bear armor' energy going on - because their enemies are demons.
BONUS PIC FUNNY RAANAAR LEGS-