I believe the correct answer is: depictions of a fantastical
world.
Hieronymus Bosch (born Jheronimus van Aken) was a Dutch
draughtsman and painter from Brabant. He is widely considered one of the most
notable representatives of Northern Renaissance artists (Early Netherlandish
painting school), but he style is different from theirs because he relied
heavily on fantastic illustrations of religious concepts and narratives such as
“The Garden of Earthly Delights”.