How to Make an Empty Black Level

To create level like this you should first get to know types of lights, maybe use of volumetric fog to have cool smoke efect. Ground can be made using plane and texture, but u can also learn basic of blender and create your own “box”. Some postprocess tricks and others you can learn on UE4 yt channel. If you have problem with something else don’t be afraid to ask!

Good level design requires a lot of work and knowledge, but recreating stuff is very good to start, good luck!.