What a surprise I already had 2 in my stash "pine needles" and fired brick".
After a trip to my craft shop "Stempelbar" here in Berlin I could add some more colours and even two metallics.
My first attempt with the "eroded metallics technique" was on a tag.
After drying the first layer of distress paint I added "tarnished brass" for the eroded effect. I think it worked quite o.k.