Sculpture is the branch of the visual arts that operates in three dimensions. Modernist sculpture movements include Cubism, Geometric Abstraction, De Stijl, Suprematism, Constructivism, Dadaism, Surrealism, Futurism, Formalism Abstract expressionism, Pop-Art, Minimalism, Land Art, and Installation Art among others.
Composition is how the forms that make up the sculpture are arranged in space. A final way to view sculpture with a discerning eye is to analyze its composition.
Some description on sculpture according to an article in Wikipedia
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