I suggest either Airbrushing or using Dodge and burn to lighten/Darken some of the edges on your UV Map, this will make the texture stand out a lot more and show the shape as well, adding a scratch layer on top will also add to the realism!
Also it is a little too low poly in my opinion, you could do well with a chamfer/bevel on some of the edges on it and still maintain the low poly'ness of the model.
Also if the cross is the material is rock (Which I'm guessing the texture is) then the cross is way too thin, as if it was rock that would probably be too easy to break, so just scale it a little bit in the X axis (In other words, make it thicker).