Great implementation of Greek myths, but missing one

It was phrasing so many greek myths/mythical persons/creatures in the right way, I really loved this. But it should have mentioned the myth of Orpheus and Eurydike. Orpheus wandered the Underworld in a quest to take the dead and his beloved Eurydike with him. He then makes a pact with the ruler of the Underworld, which (obviously) leads to his eventual downfall. This one is essential when it comes to appearances of the Underworld in greek myth, so I thought, it would pop up anytime in the film - especially after naming Persephone etc.

Sadly it didn't :(