_"OP-A.green"
... please click on the pictures

OP-Art.

About OP-A.green:

A complex composition: an aluminum foil is partially laminated on canvas in different shapes and serves as a reflector for light (daylight as well as artificial light).

Acrylic paint is then applied to the free surfaces, currently mostly white and aluminum paint. A transparent, green bubble wrap is then stretched over it, which, like a transparent color varnish on the "underpainting" (= aluminum foil + acrylic paint), gives this underpainting a new color value (optical addition of the two color values).

Another optical effect is that when the picture is viewed from an angle, the coloring of the green bubble wrap becomes more visible, but when viewed directly from the front, the optical color addition comes into its own.