Amarna is the name that excavators have given to the site of King Akhenaten’s residence in Middle Egypt, Akhetaten (the horizon of the god Aten). Akhenaten’s reign (beginning ca. 1353 B.C.), including the years when the pharaoh resided at Amarna (ca. 1349–1336 B.C.), was characterized by a major revolution in ancient Egyptian religion and art. The king promoted worship of one sole god, the solar deity Aten. His artists—liberated from some of the confines of tradition—created works of hitherto unseen inventiveness and subtlety of execution.
Relief decoration in the Amarna temples included naturalistic details, such as this one, and transitory gestures that are unique in Egyptian art. Here, a gesture of Akhenaten’s hand was captured at the moment he dropped a lump of fat or a drop of incense onto a pile of offerings. The languid grace of the bent wrist and the sensitivity of the long fingers—represented with an unusual sense of perspective that depicts the thumb and index finger in the foreground—express perfectly the essence of Amarna art.
Source: A Royal Hand [Egyptian] (1985.328.1) | Heilbrunn Timeline of Art History | The Metropolitan Museum of Art