for the inside it looks okay, but as well could use some work. the main thing i wanted to point out was why a redstone elevator when we have an elevator block in pixelmon?|
my only complaint for the gym room is that the walls is nothing but quartz.
for the most part i think you just need to try another shape for the gym. and try different colors. something you could try to make is a public pool for the gym.
or you could try having a trivia puzzle where you answer a question and go down a slide to see if you had the right answer.
hope this helps :)
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