Moving into the 1980s, Antonakos placed neon forms on painted unstretched canvases and on the faces of large geometric forms on walls and floors. This period also saw the crucial introduction of neon placed behind the edges of wall Panels, so that only the colored glows are seen. These Panels developed into one of his major practices to the end -- their single or segmented geometric surfaces variously monochrome, painterly, or gold or silver-leafed. They have been extensively exhibited in Europe and the US. In 2009 the public-scaled neon Panel The Road to Mistra was commissioned for the Onassis Cultural Center in New York. In response to this work, the New York art historian Irving Sandler wrote, "Essentially a classicist in the Constructivist tradition, he has revealed the poetry of neon."