If everyone is in a line with the central character minding their own business, its Botticelli.
Hieronymus Bosch
If the paintings have lots of little people in them, but also have a ton of crazy stuff, it's Bosch.
Garden of Earthly Delights - center panel
Garden of Earthly Delights
- Detail from the right panel
Pieter Bruegel
If the paintings have lots of little people in them, but otherwise seem normal, it's Bruegel
