Modular cave kit


I’ve been trying to make a modular cave kit like in Skyrim for a few months in my spare time and it would be greatly appreciated if you would give me some tips about how to make it more realistic, interesting or technically better, please.

I used Blender to create the meshes and uvs, Substance Painter to export some textures, that I generated from some Substance materials, and Unreal Engine to visual everything together in a game engine.

The screenshots are from Unreal Engine and there is one from Blender too:

Many thanks,