I'm still playing with how to do some wing chipping. Mind you I don't think there will be this much in the final version -- but when else can I learn it??
There's 3 types of wear on this image.
The fuselage has the same type as the wing root, but has the edges softened by a very light blur.
The wing roots have a combination of layer mask (simple bare metal underneath) and lighter brush-based scratches (the two in tandem is how I made it look like this)
And just at the end of the image you can see some white blur... That's an attempt to get the wear on the outer wing panels down pat. I haven't got anything good yet so I didn't focus on that.
So what do you think of the fuselage and the wing root?