Orpheus Floor Mosaic
Roman, 3rd century
Antonio Salinas Regional Archaeological Museum, Palermo, Sicily
Typical features of Orpheus iconography include the tree, the harp and plectrum, the Phrygian cap, and the birds and animals congregating to hear his music.
Some of this iconography was adopted in early images of Christ as the Good Shepherd.
Source: this page at Wikimedia Commons.