Non-map piece of art i'm attempting. My question: I have lineart done with the black brush on a parchment style background. But the lineart is too... black. I want it to look weathered and less black. I've seen something similar in the Butcher/Baker map (see reference clip). I have tried masks, then using a grunge brush to mask speckled spots out, but it doesn't look good. Anyone have any tips on how to achieve this effect?

Click image for larger version. 

Name:	fabc20055b1d51b894635541c1a101cf.png 
Views:	306 
Size:	335.7 KB 
ID:	39020
Click image for larger version. 

Name:	a4a90dc5f9c47d258decd9b6688fd63f.png 
Views:	241 
Size:	1.45 MB 
ID:	39019