Thx for the feedback, will work on more and fill in open spaces, i haven't done mapmaking before so i knew i'd have some problems
You may find it helpful to work with someone else. Doesn't matter who; it's just that after working alone on something for so long you can become blind to flaws other people find obvious. For instance, the giant flat walls kinda drag the map down.
Still think it's not gonna work though, when the only central idea is "wasteland." That's just a landscape that you build upon, and just scattering random buildings around it is like making a bread and ketchup sandwich. Try asking yourself this: "If my map was put in a pool with 100 other maps, and then people played through each of them only once, what's the shortest thing I could say to make them clearly remember mine?" "That one set in the bright castle courtyard. The one in the cave filled with lava. That one in the quarry with the cliffs and the minecarts. The spaceship hangar."