This stamp with the grapes is so great!
I stamped it with a brown distress ink and started coloring it with a watercolor pencil. As soon as I added water with a waterbrush, I knew it was going to reactivate the brown distress ink, It gives a gorgeous effect. On the grrapes itself, I first added a dot of gesso on each of them, and when dry, I colored them with watercolor pencils too.
I added some white sribbling on the leaves with a white acrylic marker, to add some interest.
I stamped a script in the background with the same brown distress ink.