Concrete Wall

different coloured shapes, bonus to this approach is you may indefinitely adjust them till you're satisfied, or remove and retry ^^ otherwise, very convincing concrete wall.

Very legit concrete wall, but I must warn against spray paint: looks nice but hellish on thermo yet unremovable. No shame, we all fell for that mean trap, there ought to be some warning. A workaround to the desired result may often be soft blending two

This does look very nice, though oddly graphics thermo heavy. Sculpt is close to maximum number of shapes which must be due to spray paint. I don't think it's possible to optimize at this point

Nice wall