Thanks, I think the symbolism is very important to understand in art. I believe the story was possibly picked up by Greece and was written into the story of the apple of dispute, the start of the Illiad, and I think it lines up with Stoicism.
Purple was maybe in the hands of Jon at some time, but became a Phoenician monopoly. Auld Boy made some good videos about the subject.
I like your suggestions, they could make my own ideas have more depth. I was thinking to make Rosamund have also aspects of Adela and Frya(Gefjon?) herself as a true Mother of justice, creation, plenty, peace and love, or benevolent authority and Nyhellennia as she confronted the sofist preachers, with reference to wisdom and argumentation, with maybe some reference to Greek similarities. Together they would visually communicate a very spiritual knowledge in one triptych true to the meaning and story, like my mythological interpretation. And making it European.
Triptyches are a homestay of Catholic church art, maybe no coincidence either. I believe Odin and his ravens are the same kind of threefold. I'm going to study Christian art and classic painting coming time.