Surprise!!!
Lighting matters in sculpture.
This is a test done by Daniel Chester French, who designed and sculpted the statue of Abraham Lincoln that is in the Lincoln Memorial.
French intended his statue to be lit from above. This creates deep shadows in the eyes, and sculpts the cheeks, making Lincoln look serious.
National Park Service employees initially lit the statue from below. The shadows cast by the eyebrows, the over-lit face, and the waves of the hair made Lincoln look terribly surprised to be there.
An outraged French practially tore the electrical cables from the walls. The lighting scheme was swiftly revised.....