Lonely but composed, withdrawn from but related to her environment, the woman reminds one of the self-contained, quiet and melancholy figures on Greek funerary reliefs.
Movement can be directed by lines, contrasting shapes, or colors within the artwork. And even here, it seems as if that green field stands up a little bit, in a way that remind us that this is in fact a two-dimensional surface.
Description of how line describes shape and space volume ; distinguish between lines of objects and lines of composition, e. Contrast is the use of several elements of design to hold the viewer's attention and to guide the viewer's eye through the artwork.
They meet at a vanishing point, which in the context of this painting, is obscured by the Virgin Mary and Child in the foreground. But the division is countered by the continuity of the space behind the column.
That is, shadow is always in accordance with the source of that light.