dk typed a picture: the first transparent sphere is 20 feet wide.
the second transparent sphere is 15 feet wide. it is 20 feet inside the first sphere.
the third transparent sphere is 10 feet wide. it is 5 feet inside the second sphere.
the huge white illuminator is in the sphere.
the 20 feet wide silver cube is to the left of the sphere.
the big white illuminator is under the cube.
the ground is pattern.
the sky is photograph.