Dark borders converging into a lighted center gives a beautiful realistic view of light coming through a window in the night. The darker shading of the picture brings forth the night, while the lighter shades shine in the light. The creator has skillfully painted in square shapes to the picture and thereby bring through the reflection of light just a window would when the light is shining through from the outside. While also incorporating light and shade and overlapping squares in a way that the picture almost shows up as a 3D image.
