In a closed state on the triptych, the figures of Mary and the archangel Gabriel are seen in separate niches, as is supposed in the Annunciation. They are made in grisaille technique, and their images imitate stone sculptures.
The sector with the right arm of the angel is damaged. According to the shadow cast by the dove, it can be seen that he is literally “attached” to the space of the picture. The expressiveness of the images and the play of light and shade strongly resemble the work of Robert Kampen.
Related Paintings 
Ghent altar in the closed state by Jan van Eyck 
Christmas (Altar of Portinari). Right wing by Hugo Gus 
Noël (autel de Portinari). À l’état fermé – Hugo Gus 
Navidad (Altar Portinari). En estado cerrado – Hugo Gus 
Christmas (Altar of Portinari). Left wing by Hugo Gus 
The Adoration of the Shepherds (Altar of Portinari) by Hugo van der Gus 
Annunciation by El Greco 
Altar by Jan Van Eyck
Ghent altar in the closed state by Jan van Eyck Christmas (Altar of Portinari). Right wing by Hugo Gus Noël (autel de Portinari). À l’état fermé – Hugo Gus Navidad (Altar Portinari). En estado cerrado – Hugo Gus Christmas (Altar of Portinari). Left wing by Hugo Gus The Adoration of the Shepherds (Altar of Portinari) by Hugo van der Gus Annunciation by El Greco Altar by Jan Van Eyck