The engine + assets got stolen and you do not have any kind of rights to use them even if you wanna show something to a DEV team. That's like when someone steals a car and you use it but only to show that type of car to your family. I mean I don't care what you do with your life, it was just my thought shared to everyone in the forums.
Giving the DEV team ideas about map parts would help if you actually use their engine which is UE4 here otherwise you also can make a screenshot of a place in real life and say, it should look like this.
In case you wanna hear feedback to what you actually show there, then I would rate a 2/10 because of the effort. Terrain painting is very bad, details are not really existing and you technically just placed some houses and fences next to it. And as soon you look closer, then you also see, that they are just prefabs placed down on terrain and painted some asphalt quickly. If you wanna make something to show, then you also have to ad ambients like fog, lighting, decals etc. Most of the parts which you placed are prefabs from the original owners.
EDIT: Germany is my lovely country