Hi Dave
A few years ago i completed a german king tiger tank.
To creat a 'rusty' look i found that mixing the paint with a little talcum powder gives a authentic crusty muddy affect.
And i think it looks quite good.
You can't sand it thought as i will just turn to dust, but if you want the 'mud caked on look' then i think it looks good.
Your Trumpeter looks really good!
