I think this picture uses perspective and shallow depth of field.  Depth of feild is the distance between the nearest and farthest points that appear in acceptably sharp focus in a photograph. It can be either shallow or extensive. The steps were to first set the camera to Av , setting the camera to the widest aperture and making the shutter speed is not slower than 1/60.  Perspective is shown because theres a point in which the lines meet i n the composition.