Commission: Legendary Quartet [WIP 2]

After exploring some more sketch ideas, I've finally landed on some designs the client and I are pretty happy with! Had a tough time trying to make them look distinct from each other while simultaneously sharing the same body plan and aesthetics lol

As a recap: they're a legendary quartet based on Mimis, fairy-like shadowy spirits from Aboriginal folklore. They were described to me as a mix of the Tapus and Celebi design-wise, each representing an element of the marshlands (Ghost/Ground - mud, Ghost/Poison - miasma, Ghost/Bug - bugs, Ghost/Grass - plantlife)