[8] In 1983, the Algerian government, under the chairmanship of Chadli Bendjedid, called on all national visual artists to found a museum dedicated to the history of the country.

[13] The themes of Ziani's paintings started to diversify, and in the spring of 1989, his wish to experiment with other techniques led him to learn lithography when he discovered an old press in one of the workshops of Villa Abd-el-Tif.

[14] With the help of his colleague Rachid Djemaï, he put the lithographic machine back into working order, andwith his friend Salah Hioun, painter and engraver, made his first printing tests.

[17] In 2003, he started collaboration with art dealer Victor Perahia who offered him the services of his gallery permanently exhibiting works by Salvador Dalí, Arman, Georges Braque, Louis Toffoli, Claude Weisbuch and others.

In 2010, Ziani along with Layachi Hamidouche, Tahar Ouamane, Rachid Djemaï and Noureddine Zekara represented Algeria[18] at the international painting exhibition organized in South Africa by FIFA.

In March and April 2013, the city of Chaumont organized a retrospective of his painting of various genres and subjects including the history of Algeria, Venice, still lifes and portraits or horses.