Trial Mountain Circuit Tunnel

I was massively inspired by the tunnel in Gran Turismo 7's Trial Mountain map and decided to recreate it, so I would have a high quality environment to put cars into. Many shaders are built procedurally inside Blender and I often mixed shaders based on noise or grunge or gave tiled textures more randomness with some image editing and then again layering those with noise and grunge.
For the environment above the tunnel I scattered some foliage assets from polioniq and the textures on the ground are influenced by a mask generated through weight painting. Almost all the modeling I did myself and for some assets I created details in image editing software.