The next generation of KSOP worked as separate artists or gathered in new groups developing further and diversifying photography subjects and techniques. Roman Pyatkovka, who joined the Kharkiv school in the 1980s, used common KSOP techniques in his "Fantoms of the 30s" project, dedicated to the Great Famine of 1932–1933 in Ukraine. In this photo project, Pyatkovka used multiple reproduction of images with hand scratching. In his series "The Games of Libido" (1995) he also invented a new technique called "negative photomontage:" he glued black-and-white negatives onto a glass plaque and printed the photo while the glue was corroding the film, producing a new visual effect. Another non-aligned artist, Viktor Kochetov developed the technique of photographs hand coloring through a "brutal and uncompromised approach," applying color to his originally black-and-white images.