I disagree. Wabi kusa means chaos in nature in Japanese. Wabi kusa isn't specifically limited to balls of plants. It is supposed to have imperfections, which makes it look natural.That's very cool! Those are more of emmersed bowls, though, and not in fact Wabi Kusa. Wabi Kusa are grown around moss balls and not planted in substrate, but the terms are often used interchangeably.