Hey, man. Thanks, glad you like it 
For the carpet I used the same technique that I’ve used to make grass. It’s a bunch of planes with fur texture scattered over the surface (with foliage tool). In that specific case it’s the SpeedTree Backyard Grass model with dessatured diffuse colors :D.
You can find the details here: https://forums.unrealengine.com/show…t=archviz+lawn and here: https://forums.unrealengine.com/show…ight=