To create this environment, I have based on the video game Last Of Us. I have tried to give it a realistic look, maintaining a geometry suitable for video games. I have also been helped by Romain Dauger's post, following his steps and giving my personal touch.
I have tried rendering it in Unreal Engine 4 and in Marmoset Viewer, but I finally liked the result of the second one.
I hope you like it!