Cut the design as per my settings - the engraving is set to have clear & deep lines.

Paint with acrylic markers or simple paint; choose your favorite colors. I choose traditional brown-is shades, but you can go with red-yellow, or even green or blue colors as well.

Wait until the paint is dried.

Add the stud earring settings to the back with strong glue. I am using this super glue from Pentart; it's very easy to add a small dot to the backs, and when it dries, it will became transparent.

Wait again, until it dries.

Start with the back side, and add a layer of varnish to your earring. Don't forget the edges.

Then, when it dried, you can add the varnish to the front too.

Add the back parts of the stud earring settings, when it dried, and you are ready to use :)