For this I will repeat what Leonardo is reputed to have said, ?The human foot is a masterpiece of engineering and a work of art?? ? and add that it is just about the sole justification for the evolutionary journey from apehood?
In the British sense of the word, something approaching a „Hothouse“?
Ombromanie is a synonym for the near dead art of shadowgraphy or casting shadows with the hands. Here the feet are doing it, though what they are trying to represent is not clear — perhaps just feet.