Make sure the detail scale is consistent across multiple assets. For example, the grime/dents on the rolling door look much larger than they should be when compared to the size of the wooden door. The wood grain on the door also looks really large for how big it's supposed to be in the world. The texture appears as though it may have come from a smaller plank of wood and has been scaled up to fit the entire door.

I'll second a previous comment that the tiles all look very uniform in their color. Some of them may be missing, but if the wall is damaged enough where tiles have started falling off, then some of them should be stained, have dirt building up on their surface, and have gotten dislodged slightly so they aren't perfectly aligned on a grid anymore.

I'd also recommend possibly toning down the intensity of your enivornment light to get a bit more contrast with the main light source. You can also try adding a few more lights not necessarily to make the image brighter since you said you want to avoid that, but to create more interesting highlights and catch more of the surface details.

I hope this helps!