Sen to Chihiro no Kamikakushi, Made in Abyss Recommendations
Very similar feel in that they both feel like you have stepped into the spirit world. With a lush world of amazing art, and incredible character and strange creatures. You definitely feel transported away in both works. Made in Abyss has a very "Ghibli" feel to it too.
The environement's details and creatures are very similar.
The main duo work the same way.
Global vibes are very similar: poetic, but dynamic.
This is my first review so please be gentle-
The main character in both animes is a young girl exploring the world she does not know much about.
There are strange creatures in both animes.
Both contain beautiful art and animation.
And overall both have similar vibe.