Koi Harmony is crocheted in the normal overlay mosaic row-by-row technique.
The PDF has 4 easy-to-read charts and corresponding written instructions.
Two PDFs are available - one using US terms and one using UK terms.
You can use any yarn and corresponding hook you like for this pattern, just remember a tighter tension is better for mosaic crochet.
You can of course create any size you want as it’s a simple repeating pattern.
Many thanks as always to my lovely testers Cindy Kondalski and Jamie Storer.