I can’t see the picture of the painting and its artist. But the purpose of equestrian portraits in history is that they demonstrate elements kept on horsebacks.
Answer:
I don't see how this is about arts but do you want to freind me I'm heybudcheckit
Explanation:
Effigy - A sculpture or model of a person.
Secular - Denoting attitudes, activities, or other things that have no religious or spiritual basis.
Polytheistic - The belief in more than one God.
I hope these definitions helped!
I think the answer is musical style