These two tags use Distress Paint on a rubber stamp as a resist
and then Distress Ink on top to bring out the resist.
And these three feature a technique called Eroded Metallic.
Start with several colours of Distress Paint in blues and greens,
then over paint with Metallic Bronze, spray with water,
partially dry and use a paper towel to remove some of the metallic paint.
In person, these tags actually look like patina-ed metal - amazing!