What is your opinion on these names? Sienna, Brianna, Persephone?

My favourite out of all of them is Sienna and Brianna. These two names are unique and beautiful. I like Brianna and Sienna because they end in -enna and -anna. I really like these types of names. I have never known anyone called Persephone and when I looked at it I tried to pronounce it Percy-phone. But after reading how you pronounce it in the additional details I think that it sounds really pretty. :) Good choices of names!