Also in 2015, Martiny was invited to produce two large works for the One World Trade Center, which are permanently exhibited there.

There, in 2016, he conducted a public discussion on the painter Hans Hoffmann in the context of an exhibition of his works.

[5] This term refers to a method of how the painter applies color to an object: "The idea was that the artist would physically act out his inner impulses, and that something of his emotion or state of mind would be read by the viewer in the resulting paint marks."

He had to experiment for years with the composition of the paint, which should be liquid enough to reproduce the brush stroke well and at the same time be so durable in a dry state that the work can be mounted on the wall without breaking.

The finished work is reinforced by an aluminium plate cut to the exact dimensions of the brush stroke as a base.

[5] In November 2022, Donald Martiny designed the set for a dance performance by Amy Hall Garner of the Paul Taylor Dance Company at the David H. Koch Theater at the Lincoln Center for the Performing Arts, titled Somewhere in the Middle: "Donald Martiny’s set – hanging brushstroke pieces that show dimension through the thick, sometimes bumpy paint texture – changes in color and shape throughout the work, matching the liveliness of Mark Eric’s bright costumes (briefs and bras overlaid with transparent fabric).