Very nice! Very Art Deco.
Oddworld got progressively more art deco with each game, and I could definitely see the advertisement posters scattered around Nolybab.
My only criticism is that certain things are slightly off-center or inconsistent in symmetry. It's barely noticeable, and a few of the inconsistencies I'm noticing may just be a trick of the eye.
I'd love to see more!
Perhaps make some travel posters for Feeco Depot?