Focus on this artwork and analyze the Style and composition.
The Baroque saw significant changes in the art of sculpture;  Bernini was at the forefront of this. The statues of the Renaissance masters had been strictly frontal, dictating the spectator to view it from one side, and one side only. Bernini's David is a three-dimensional work that needs space around it and challenges the viewer to walk around it, in order to contemplate its changing nature depending on the angle from which it is seen. The sculpture relates to an unseen entity – in the form of Goliath, the object of David's aggression – as well as to the spectator, caught in the middle of the conflict. The warrior even literally oversteps the boundaries between life and art, putting his toes over the edge of the plinth. The conventions of time, as well as space, were challenged. Instead of the serene constancy of, for example, Michelangelo's David, Bernini has chosen to capture a fraction of time in the course of a continuous movement. Thus the latent energy that permeates Michelangelo's David is here in the process of being unleashed.On an emotional level, Bernini's sculptures were revolutionary for exploring a variety of extreme mental states, such as the anger seen here. David's face, frowning and biting his lower lip, is contorted in  concentrated aggression. Baldinucci and Gian's son tells an anecdote of how Barberini would hold a mirror up to Bernini's face so the artist could model the sculpture on himself. This bears witness to Bernini's working methods, as well as to the close relationship he enjoyed with the future pope.
In addition to attempts at realism, David also followed contemporary conventions about how a military figure should be portrayed. As Albrecht Dürer previously had postulated, the vir bellicosus—the "bellicose man"—was best represented with the rather extreme proportions of a 1:10 head-to-body ratio. Furthermore, the warrior has a facies leonina, or the face of a lion, characterized by a receding forehead, protruding eyebrows, and a curved nose (David was later to become the "Lion of Judah").
Lion of Judah proportions Michelangelo Baroque Renaissance David Goliath Gian's son plinth Albrecht Dürer