Yes I think so, listening on headphones. It seemed especially noticeable at the beginning when it's mostly just the voice and guitar near the center. More specifically, I think there's a kind of thickness in some vowel sounds - I wonder if that's a sign that you only need to reduce something in the mids, not reduce the level of the whole vocal...?
It's all rather subtle though, I'm certainly not skilled enough to have identified the problem if you hadn't asked about it. Quite educational
Very cool song and a lovely voice, anyway.