Shapes are two-dimensional. Positive shapes represent solid objects and negative shapes show the surrounding space. Geometric shapes are perfect and regular. Organic shapes are irregular and natural.
A shape is a two-dimensional area. Shapes have height and width but not depth.
A shape might be defined by an outline or through contrast with its surroundings, such as through colour or tone.
Georgia O’Keeffe, Picasso and Aino-Maija Metsola’s works show the two-dimensional geometric and fluid organic shapes that can be used in art and design.