Isabel Greenberg is one of my very favorite comic artists! I love her style and I love yours as well. I don't use a limited pallet for my whole comic, but certain episodes have a unique/limited pallet. All of my nighttime scenes/episodes are in my "night mode" color pallet, which is mostly purple-scale (not as limited a pallet as you are Greenbergs', but definitely with an intentional color scheme). I have plans for other limited pallet episodes as well, including a blue-scale underwater world and a green/cold/brown limited pallet deep forest sequence.
I've been subscribed to your comic for a while and was excited to see you post here! Here is an episode of my comic that is mostly in 'night mode' (after some daylight scenes at the beginning), and functions as a standalone story, if you're interested! 
https://tapas.io/episode/1999972