Two floodlights, one on each side of the camera., at
camera level flatten the subject.
Diffused light from above does not help. There is no
contrast between the two front planes.
Instead, start the lighting slowly, one light at a time. Here
the left-front floodlight starts the lighting.
The spotlight from the rear is established.
Now add the third and final light. This is the right-front
floodlight that should provide only about half the
intensity produced by the other floodlight. Notice the
background shadow and the way it helps to separate the
subject from the background; also, notice each plane of
the subject has its own tonal quality, giving it shape and
form. The foreground shadow, besides helping to
visualize shape, tends to hold the block to the ground.