actual shadows as elements

I decided to give away all but one of the collage lapel pins for Thoughtsgiving. I kept the one with George Washington's eye in it. I really liked the simple two-element composition and the color palette. After searching for a frame for the piece, I placed this frame over the small collage (less than 2" x 2"). What "emerged" was an interplay between the collage, the frame, and the multiple shadows created by the various lights in my studio. I really LOVE the shadows, when considered as additional enhancing "elements" of the collage. But those shadows are, after all, transient, unless I was able to duplicate the positions of the lights in a gallery. Even in my studio, I would either have to have the collage and frame in exactly the same spot to re-create this image; or adjust the lighting. So I suppose that this posted photo IS the artwork (akin to Andy Goldsworthy's transient natural artworks, for which he relies on photography of the work to represent the work).