These beast-headed archers may be a reference to the Book of Revelations.

East View: Leonine face.	West View: Leonine face.
North View: Animal-headed archer bends his bow.

Related capitals:

Revelations Capitals:
Capital 10: Chaining the Devil, Og and Magog
Capital 11: Symbols of the Evangelists
Capital 15: Vision of John the Evangelist
Capital 39: Saint Michael fights the dragon
Capital 51: Evangelists with Symbolic Beast's Heads