Who is the angel in the Balcony cliff?

Does anyone know who or what the statue at the top of the balcony is depicting? My head canon is that it's a depiction of a younger Jenka trapping Ballos in the Blood Stained Sanctuary, probably made by the mimigas of the past.

 

I always assumed that those angel statues were some sort of representation of the religious lore of either the mimigas, or whatever race originally inhabited that area of the island. Maybe it was put there by the Cthulhus? Maybe they had their own separate history, and the angel statue is some commemoration of a pre-mimiga history that is only remembered by the Cthulhus.

 

Could be ancient remnants of the ancient city depicted by the phantom dog.