Now you're going to be building the map. You may want blocks including green and blue wool/concrete/concrete powder with the land and water, then perhaps sand or perhaps gravel for deserts and gravelly mountains. Note that When you are working with concrete, you'll have to harden it in the https://nether-portal-minecraft18024.blogdemls.com/452865/how-to-build-a-cool-nether-portal-in-minecraft-for-dummies