Wow! I love that Eva! That's honestly one of your best ones, and the mirror in the background was a really clever idea.
When Manny reads poems in the Blue Casket, the player can choose the lines. They aren't from any of Olivia's poems, but if you keep asking her to read hers, she will eventually steal Manny's poem. When he complains about that, she just says it's an homage. You can see the entire thing here.
I can't remember which of the beatniks is which, but someone who has a safe game around there could check it from the dialogue transcript. We could also wait for Shuz to show up and shed light on this. He's a fan of the beatniks, I think.