Oh no, so sad to see Hespera go! But I understand your concerns.
My favorites from the list:
Whenever I used to think of Ursula, the character in The Little Mermaid would immediately come to mind, and it just felt ugly. But now, I'm starting to feel out the name itself, and Ursula is growing on me. I feel like I could grow to really love Ursula!
*I've loved Persephone for years, but when it comes to your P names, Pandora will always be my favorite! :)
Aww, Hespera was so beautiful, but I understand your reason for cutting it.
Of the names you have left on your list I am really digging Zephyrine. I think it has the same light, airy, frosty feel as Hespera. I think it could go well with Hespera as a mn, too!