I think you have to rethink this from a different perspective. You are looking at it as you have always approached your work, which is natural. This would be a different kind of focus, as you said, toward art not craft. You just have to align your thinking to match. It is a different market than what you are used to. Shift your thinking from craftsman to artist.
BTW, I don't think you ever outgrow Etsy, you just evolve. I see a lot of art in the ceramic side of things on Etsy.