I'm not sure that I lived up to this week's challenge. I got a little carried away, and lost sight of the theme.
The Nail Tarts did "grey + color" manis, and my individual prompt was "squares". I layered and overlapped my squares making some of them look less square, and went for a patchwork sort of look, making them look even less square. I still like how it turned out though!
I used Sinful Colors Cool Gray, and added Zoya Aspen, Yves, Iris, and Amal for my patches, plus Pro Nail Lacquer The Little Black Dress for stitching, and a matte topcoat.