Thanks for your comments guys feedback is always good.
Mayner, it was a bit of a lightbulb moment, the realization with the crosskiting!
Popeye, I usually realize I have overdone the weathering far to late!
Jim, where do you find these priceless gems!!!
Its a very damp day so no airbrushing but that gives one time to ponder the finish even more.
I did base the loco on a couple of pictues in Irish Railways in colour 1947-1970 No 378 features twice but I think the dirty patches look black &light grey on the boiler&cab with brown below the running plate. A pal thinks its brown! colour is in the eye of the beholder!!!