In 1987, he was part of the New Visions collective that boycotted Israeli supplies and instead used local natural Palestinian materials.

[3] He developed a realist style of painting, depicting the daily life of those living and rooted in Palestine.

In 1987, together with other Palestinian artists like Vera Tamari, Tayseer Barakat, and Nabil Anani, Mansour founded "New Visions", a collective formed in response to the First Intifada (1987–1993).

[4] This collective turned to earthworks and mixed media and assemblage using natural materials derived from the Palestinian environment in order to boycott Israeli art supplies in protest of the ongoing occupation.

After a while, once I started making figures, I realized that the mud also reflects the human fate with the cracks, people waiting to disappear, fall down and go away.″[3] In 1988 he made a series of four paintings on destroyed Palestinian villages, the four villages being Yibna, Yalo, Imwas and Bayt Dajan.