This photo's EXIF data points to El Cerro, Puerto Vallarta, Jalisco, Mexico. So what is that, anyway, a sand sculpture?
A different Flickr photo of a similar subject (with better lighting), signed Arnie Rose, tells us,
At first glance, I thought this was a very impressive sand sculpture, but then the figures moved, ever-so-slightly. The entire set is covered in a sand finish and the two "actors" are also covered in a sand-based make-up of some sort.
The box on the ground is for 'Tips'. Knights before Bishops?