Space is the area between and around objects. It describes how the artist uses the area to arranges things within a picture.
Positive space is the area that appears to be “filled” by an object. The space around objects is often called negative space. Negative space has shape.
Space can also refer to the feeling of depth.
Looking Down Yosemite Valley by Albert Bierstadt
Real space is three-dimensional. In art, when we create the feeling or illusion of depth, we call it space.
Space can be used to create a feeling or a mood. What mood or feeling do you get from the image below?