Built an enderman farm in main world close to my base. Need advice

So I built an Enderman farm in the regular world, close to my base at the top of a mountain. The very top of the structure where the Endermen should spawn is

My custom end island with an enderman farm in the middle : r/Minecraft_Survival

10 Best Farms To Make In Minecraft

They said it was a crazy idea, but I built an underwater Enderman farm anyway : r/Minecraft

The farther you go from land the fewer Enderman can spawn. I don't know how to get better rates, and be away from large spawnable areas. How far out should I build

Minecraft Enderman xp farm ⚔️ #minecraft #xp #xpfarm #endermanfarm #mi, Minecraft XP Farm

How to Make An Enderman Farm in Minecraft (2022)

How to Make An Enderman Farm in Minecraft (2022)

Tutorials/End survival – Minecraft Wiki

vesko's Survival World [1.16.1] Minecraft Map

Enderman Farm - RTGame Wiki

A Space Station I built in my Survival World to cover up my Enderman Farm. The rates could be better, but it does look nice doesn't it? Tell me what you think

The farther you go from land the fewer Enderman can spawn. I don't know how to get better rates, and be away from large spawnable areas. How far out should I build

How to Make An Enderman Farm in Minecraft (2022)

EnderMINI - Simple Enderman Farm [Tutorial], and 1.13 Mob Spawning EXPLAINED! [Fun Farms 23]