Each of these pieces starts with two sheets of 2" foam insulation, joined and then cut to shape. In 9.4-9.9, plaster was then cast into the surface of the foam. Next, a clear vinyl "slipcover" was placed around the piece, held away from the surface by the projecting plaster insets. Finally, certain areas of the surface of the vinyl were lightly airbrushed.
In 9.1 and 9.2, the plaster element is independent of the foam shape. The plaster hangs from the wall and the foam shape is placed around it, allowing the "figure" to support the "ground".