Told the artist in a secret what to paint? How did you tell him to do that?
I made sure to get there before her with enough time to get things set up.
I explained to the guy what I wanted, he definitely seemed like he'd done it before. He drew me a sample picture to make sure we were all on the same page.
When we came back, we sat down and I told the guy to "make something fun, in color" and that was that.