Mahoutsukai no Yome, Tongari Boushi no Atelier Recommendations
They are both very beautifully drawn.
They both explore beautiful settings.
They both explore the world of magic in depth.
These mangas have a similar atmosphere, both are about a girl who is learning about the magical world she lives in thanks to her master or professor. And soon you can notice this magical world is darker than it seems at first sight. Also both mangas have a beautiful and detailed art style. If you enjoyed one of these stories, probably you'll enjoy the other.
Fantastical Worlds, Similar whimsical and detailed art-styles.
Both are beautifully illustrated fantasy series with a unique take on western-style magic. Both address the hypothetical consequences of a world with magic. Both have strong female characters and a male mentor figure.