It is a top-down, symmetrical semi-circle shawl. Make as big as you want just by knitting more. Any yarn and colours will be great for it.

After row 22, I said to repeat rows 21 and 22 until desired size.

It should read repeat row 21 and all even rows after continue in pattern.

ie, Knit the knit stitches and purl the purl stitches.