[STM]

This is precisely what I'm thinking. Soulstorm Brewery was great because you got to see first hand the extent of The Glukkon's cruelty, literally building machines to make their slaves cry, and cashing in. So weird little nods at how the Animals are kept, undersized cages, maybe have a sort of furnace where it's clear the animals are particularly agitated because of the heat, etc... Make you feel really bad about them, despite the fact that they spend a large part of the game murderizing you themselves.

I love Oddworld for its magnificent backgrounds. They're a focal point of how great the games themselves are.

If possible, have some kind of Graffiti or other markings the first time you leave Rupture Farms saying 'rise mudokons' or whatever. Rebellious stuff. Or any instructions on how to escape to/from the Stockyards covered with Wanted posters and warning signs.

Also I would really like at least one room with a chandelier, and the oppurtunity to kill myself/an enemy with said chandelier.

This, effing this! ^

It would work so well in the Stockyards!