There is a useful feature that you can use which is posting saves on posts. Just type ~SaveID and that thing will magically turn into a nice menu. For example, for your save, type ~1842391 it it should look like this:
@epic34(View Post) Basically, border up your world, put some random powders, use positive/negative gravity to mix them up, use eraser tool to remove some parts of the mixture to create a nice-looking landscape, pour some water if you want, add houses (try to not use deco at all), add stars if you want (use a material that glows), add life to your city if you want (like adding stickmen), add some underground structures if you want, save your work and share it :)