i'm gunna cry, SO CLOSE ๐๐
The mills are the only piece that stacks. That means you can build 3-4 fields next to a single mill, and keep placing new mills on top of the first one. This makes your fields way more productive, and gets you way more taverns.
Also, your piers seem to be choking your island. There are a couple ways to prevent that. I posted one here, and another poster found a different way.