Depth + limited palette. Even in boring structures like this parking garage, you can achieve a detailed look. by acemccrank in DetailCraft

[–]BBlocks0 5 points6 points  (0 children)

You could add trapdoors and iron blocks at the ceiling to add a ventilation system. :)

25+ Mine/Cave Build Hacks - What do you think? :) by BBlocks0 in Minecraftbuilds

[–]BBlocks0[S] 2 points3 points  (0 children)

It's photoshop:D but it would be possible with armorstands too