Looking for honest opinions on how this French name sounds in English

My wife and I are expecting a little girl in a few months, and we're currently deciding on a name. One of our favorites is Sixtine, which is quite common in France. However, we're aware that in English, it sounds very similar to "sixteen," and we're wondering if that might be an issue.

Since she will likely travel and work with non-French speakers in the future, I'd love to get some honest feedback from native English speakers.

If you met someone named Sixtine, what would your first impression be? Would the similarity to "sixteen" seem odd or distracting?