The mid is not bad and I think it's got a pretty interesting style, add an eye on top of the pyramid.
The individual islands, though, are meh. They're like, humongous, and are pretty much a copy-paste of Aztec, from the moment I saw them that's what I thought. Maybe switch (if you can) the biome to desert so that grass in the islands is yellowish and more in theme, or do more desert-themed islands. (I can give you some inspirations about that theme if you want)