Mononoke Hime, Made in Abyss Recommendations
The environement's details and creatures are very similar.
Global vibes are very similar: poetic, but dynamic.
Similarities: The mysteries of their worlds and the way they explore them in both, from the designs of; the creatures, the environments and even the characters. I mean, San's design obviously helped inspire the design of Nanachi, Ashikaga's curse to Regu's cyborg arms and even Lady Eboshi antagonistic beliefs to Ouzen's own antagonistic beliefs. Even the stories are alike; a tale of a journey to found something/someone (with Mononoke Hime, a cure for Ashikaga's curse and with Made in Abyss, Riko's mother).
Made in Abyss feels like a Ghibli movie that was written by a sadist.
Boasts an Art Director, Osamu Masayuma, who has worked on various Ghibli films too, so the art is just as fantastic and captivating.