I don't have watercolor crayons, but do have some watercolor paints. First, moistened a foam paint brush, then spread some blue watercolor paint along the bottom edge, sprayed with more water to moisten the paint, then brushed it over coated card stock.
Quickly, while the paint was still wet, stamped dry rubber stamps in to the paint to remove some of the paint, to create light images.
For the next step, Nancy colored her rubber stamps with the same watercolor crayon. Not having the crayons, I colored my stamps with the same watercolor paint used to make the background. Squirted the paint on to a bit of paper towel and sponged iton to my stamps, then stamped them on to the background. I liked how this gave me the opportunity of doing the music stamp with different amounts of paint.
When the paint had dried, over stamped the herons and dragonfly with dark blue dye ink along with the word "discover". Then stamped a saying and more dragonflies with black Archival ink and heat set.
Trimmed the card stock, colored the edges with black Archival ink and heat set. Tore a strip of white card stock and adhered to the left side of a dark blue card. Glued the stamped card stock on top.
Below you can see the same card made earlier when I grabbed the wrong supplies.