Cut 3 sizes of paper. Make sure they graduate evenly. My large square is 3.5 inches, medium 2.5 and small 1.5 inches. Stack layers and center. Secure all three with removable adhesive. Stamp your image in the center of the stack of three.
Color image (and or airbrush as I did!) and then remove adhesive.
Mat all three squares.
Realign the matted layers and secure with permanent adhesive.