The entrance to Harlan Levey Projects is an anonymous doorway on the ground floor of an apartment building on a mostly residential street outside the center of Brussels. It would be easy to overlook. From the entrance of the gallery, what could be seen of Marcin Dudek’s “Slash & Burn I” was a wall with a densely packed grid of abstractions, each so small and understated that the one thing that could be immediately determined from the gallery door was that they eschewed heroics. (A sequel, “Slash & Burn II,” is scheduled for 2021.)

Very original work induces a particular kind of hesitation, a