Did you also think the "viewer" was a hovering, disembodied, yellow disc, or did you understand the implied "insert human being here"?

Dual shadows
 

There was a (New?) Mexican ?artist? who carved some sculptures (10?) 70 years ago? in 1970-ies?

Anyway, those are now collector's items and best displayed in the corner with two lights, so that it casts different shadows on 2 surfaces.
The one I saw (TV, xx yrs ago, 3 min clip) was eagle with raised wings/elk with big horns.

Flint's third picture reminded me strongly of that, and nobody mentioned those carvings...

I (we) (you) (them?) am very confused (un-enlightened) (unsure?) (not clear) as to where you were going with your post.

:) BTW, welcome to the cellar!

This series is another excellent example of perspective-specific images.

I like the dead guy in pic 8