High relief sculpture is characterized by what feature?

High relief sculpture is distinguished by its significant projection from the background. This type of sculptural form is characterized by figures and shapes that extend outwards to a notable degree, creating a sense of depth and dynamic presence. The elements in high relief often appear almost three-dimensional, allowing for intricate detailing and shadow play, which enhances the visual impact of the work.

In contrast, other forms of sculpture might be flatter or less pronounced against their background. For example, a sculpture that is flat against the background would not qualify as high relief; instead, it would be described more accurately as low relief or bas-relief, where the design is only subtly raised. Additionally, while a sculpture entirely contained within a background could be expressive, it wouldn't fit the description of high relief, as this level of depth and projection is what defines the category. Similarly, the placement of a sculpture at ground level does not inherently relate to its classification as high relief, as high reliefs can be found at various elevations depending on their context and creation.