The triangular object on f76v

[Koen G]

So far the most "like" thing I've seen is a Persephone statue, wearing her hair in the Mediterranean "young lady" style. This explains the curls and the waves in the bottom of the triangle - though not quite the top of the triangle...



The question also remains why the hairdo (??) of a woman was isolated and placed over a nymph. It does indeed seem like a "double meaning" is hard to avoid.
A cave would have some thematic link to Persephone, of course