The seed using my name is pretty ridiculous. You start on a tiny island and can choose to swim to one of two major islands. One has a giant meadow you can start building in, as well as some dark forest and mountain. The other doesn't have as much meadow, but it has all biomes (although the plains is rather tiny). It also has every single boss in the game on it besides Yagluth, as well as a really nice natural harbor if you care about that. Lastly, the trader is on a neighbouring island (which also has all the biomes).