A balanced perspective is produced when the elements from the foreground to the background are scenically illuminated. The effect of depth can be enhanced by graduating the brightness from the foreground out to the background.
The concentration of light on the foreground and middle ground causes the background to recede into the depths and attracts the focus of perception towards the front.
To create spatial depth, it is sufficient to have a bright foreground and a visible background. The dark middle ground clearly separates the front and rear sections of the image and the facade lighting results in the trees being silhouetted.
The accent on the sculpture attracts the viewer's attention to the foreground. The image planes that are further away remain in darkness.
By only lighting the trees, the space appears wider than when the focus is on the foreground. Since only one plane of the image is apparent, the scene lacks any real spatial depth.
The concentration on the facade lighting emphasises the rear plane of the image and provides an indication of the depth of the garden. The uniform illumination of the background results in the objects in front only being recognisable as shadowy silhouettes.