Painting with pigment powders is a technique I personally developed, out of curiosity and a desire to connect with the raw material.
I paint on dark paper using my fingers and an eraser only, without brushes or other tools.
The feeling is almost like sculpting.
The outlines you see are the result of the erasure and revelation of the black paper underneath.
High-quality prints are available, up to twice the size on canvas and up to three times the size on fine art paper.