Greetings @JEWEL-UE !
I would say that you’ve done a pretty good job in recreating this scene in Unreal! My only suggestion is this: On the viewer-facing wall where you have the wear and tear, three of the wear and tear “designs” are exactly the same consecutively from left to right. They appear more copy/paste, whereas in a real scenario, the wear would appear more random.
If I could offer some assistance, I know of a developer that achieved something similar through vertex painting. He was able to produce something random this way. Here’s a link to his WIP and video. I hope this helps you achieve even more of the look you’re going for!
Happy Developing!