I am surprised by other's votes.. I will be the black sheep and vote for the left one.
I think when surrounded by simpler frames (without any bling), it can be a very nice accent piece to a vignette.
Imagine a simple black and white photo inside the left frame... I think it would be lovely.
I think the right one reminds me of my mom's 80's party dresses.. I simply don't like it, sorry. The left one reminds me of Great Gatsby. I can't explain. These are just my personal opinions and I respect those who disagree. Peace!