In the context of this artwork, explain the Space and lighting of the Overview.
The lighting scheme employed by Petrus Christus is also noteworthy. The Monk is bathed in intense light, setting his figure dramatically against the space that he occupies. While this strong, raking light is typical of contemporaries like Jan van Eyck, Christus’ addition of a second, opposing lighting source behind the monk marks this portrait as distinctive. The light on the left seems to be a reflection from within the room, yet the light bathing the monk seems to be coming from an external source, perhaps an unseen window. The result is that light comes from both in and outside the pictorial space, with the monk (particularly along the hood of his cloak) being the meeting point of the two. The monk is therefore framed by a two-source lighting structure, allowing Christus to employ a much fuller and richer spectrum of colors and shading than a single-source lighting structure would. This complex lighting scheme is the reason Portrait of a Carthusian appears fully 3-dimensional and realistic.
Petrus Christus Carthusian Jan van Eyck Christ