What type of relief features more than half of its forms protruding from the background?

High relief is characterized by forms that extend significantly from the background, with more than half of their volume projecting outward. This type of relief sculpture allows for a greater sense of depth and dimension compared to other forms. In high relief, the figures and forms are often quite detailed and can even cast shadows, enhancing their three-dimensionality and visual impact.

The depth and pronounced forms in high relief allow for dynamic interactions with light, which can add to the overall aesthetic experience for viewers. This technique is commonly found in architectural decorations and monumental sculptures, where the aim is to create a dramatic effect that draws the eye and engages the audience.

In contrast, other relief types, such as bas relief, feature forms that are only slightly raised from the background, allowing for limited depth. Flat relief suggests a surface-level design without significant protrusion, while shadow relief focuses on the interplay of light and shadow without substantial three-dimensionality. High relief stands out due to its pronounced forms and intricate details, capturing attention and offering a more immersive visual experience.