Drawn in CorelDRAW, cut with Silhouette Cameo. I didn’t think it was obvious enough without the spiral, so I added it lightly, using a compass.
I cut the “34” and “Happy Birthday” from matte adhesive vinyl.
I made a mask to position the numbers in the center of the square.
Close-up of smaller squares.
The color palette started with “Autumn forest hues” from coolors. I searched “9 color palette” for suggestions. I needed a couple more darks at the orange end, so I put in two browns, and I didn’t use the darkest blue or the muddy green-yellow.
