I like this map alot! But I feel like it isnt at MunchyMC map standards in my own opinion.
1: You have just used worldedit or any other mod to change the background of the map, try adding some detail to make the aesthetic stand out.
2: It looks like you have added some unnecessary pieces of work at the top to make the map look full, I would recommend to take your time and think of some arcade related work.
I would say more, but it has already been stated and I dont want to place that pressure on your shoulders, best of luck!