Interesting photograph, maybe if you were passing there one day,again. It looks similar to a human head(thumbnail-view), it's missing the nose and mouth. The correct piece of cardboard(or object) at the correct angle, would create (an addition shadow) to the upper shadow of the circle,(but then again it already has a face). The face looking into the shadow of the forest (maybe it's the incorrect spelling of the word Forest, trapped(in imprisoned) in their own mind). I guess portrait view(not landscape view). I guess it's already a person(the shadow), all shadows disappear from view. layered blocks.......... it's just an idea :) Great photograph(so 7+) Nigel:)