Albrecht Durer, Head of a Stag, c. 1503
Hans Holbein the Younger,
Resting Lamb and Head of a Lamb, c. 1523
The golden fleece is present with Settignano's work. Golden for the thinking of Christ and Saint John and we feel the blessing of Donatello and God with the workshop of Donatello being where Settignano's main work feels like it was accomplished. There were several other students working for him but Settignano feels like the most prodigious. The heart is after all a metaphor for the garden of earthly delights or God. Christ is represented as a stag or deer, too but is also associated with the lamb of God.
Jan van Eyck, St. Barbara, c. 1437
Pisanello, Vision of St. Eustace, c. 1436-1438,
National Gallery, London