>>96510909
To add on to what >>96511783 is saying, there is mesoamerican stuff but it exists as a result of 1500s Mayan refugees being enslaved by the Atlan so I would assume it mostly shows up in the lower ranks.

They do use dinosaurs, they prefer beefier ones like bullsaurs (trikes) over the faster and toothier ones used by the Saur orders. Although now I'm imagining that minotaur unit idea, but with a bullsaur-themed helmet instead. That rocks.
I think the blue stuff on Baron Phosphorus is liquid titanium, which exists rules-wise but has not been touched on in the lore much.
They use spring-powered guns instead of gunpowder but the aesthetic is largely the same (I've been trying to get a good sallet on my spring gunner conversion for a while but it just won't come together right)

Conquistadors (soon to be husked) showing up rocked their society enough they've worn puffy sleeves for the past 300 years and it's not just because I like puffy sleeves I swear.

A drawfriend made this last year and I think it captures the idea very well.