I started with the gorgeous OPI DS Classic, a nude scattered holo.
I used a striping brush and three polishes: Jessica Movie Premiere for the sky blue, Ulta Wild Night for the navy blue, and Sephora for OPI On Stage for the taupe. I wish I had thought to outline the shape in black first, like the decals, but I didn't. Hubby said he liked mine better, anyhow, but he's kinda supposed to. ;)
Right hand, I attempted the same pattern:
Have you tried to replicate a decal with freehand art? I'm not an artist, but it's fun to try.