I really like the islands, but I don't like the shape. If you maybe remove the corners of the middle islands, so you get some sort of cross, and than replace the spawnislands, than it has more of a circle shape, because now it's a square. Besides that I think middle is way different than the other islands, because on the spawnislands you've built a classic, Dutch windmill, and middle is a modern windmill. What you can do is make a very big, classic windmill on mid, so the whole map has the same idea. Those 2 things are the only things I would change :)