I knew what I wanted to do with this sketch shortly after I looked at it, but didn't have the opportunity to put it all together until today. I choose the harder of the two sketches at Midnight Madness Sketch Challenge routinely and did the same with this challenge 45. It took some careful lining up with my scor pal, craft blade, and stamp-a-ma-jig to get it to work out. I used the colors from Color Throwdown Challenge 84, the black is in the code and I used black pearls in the corners. I substituted Baja Breeze for Soft Sky as I didn't have any more. See if you can figure out the code and add it in a comment.
Close up so you can figure out the code.
Paper: Taken with Teal, Baja Breeze, Tangerine Tango, White, and Welcome Neighbour DSP
Ink: Whisper White, SU markers, CM black marker
Accessories: Scor Pal, craft blade, stamp-a-ma-jig, Prisma flowers, half pearls