One of the criteria for the CASology challenge is that the card should be "quick and easy to recreate." Once the main image was fussy cut, the cards were, in fact, easy to recreate. I started with an Altenew "Persian Motifs" image that I gold embossed on watercolor paper and colored with my Zig watercolor markers.
I used a Simon Says "Stitched Rectangle" and adhered it to a cardstock color that coordinated with the painted image, and gold embossed the sentiment below it. The card on the right is actually navy blue, though it appears almost black in the photo. The cardstock in the middle is actually more purple (much closer to the painted image) but didn't photograph quite as accurately as I hoped.