underground spawner basement

I bought my new computer and started a world on it. I found an abandoned mineshaft. I started to explore it and found 3 spawners very close to eachother.

-A spider spawner
-A cave spider spawner
-A skeleton spawner

I knew I could build something great with it so I started building.
I created a xp-farm from the cavespider, and just normal farms for the other 2.

When I was done I decided to make a Automatic wheat farm below it. I also created an elevator to the surface.
It took me alot of time to build everything. The redstone was the hardest part because everything needed to be
close to eachother so I didn't had that much space.

Anyway, I hope you learn allot from this map and enjoy playing it.
leave a comment about what you think and what I could improve about this map/my style.

ps.This is my first project so don't be to hard :) I'm trying my best.