A Work in Progress: Sheer One-Piece Shawl

I'm knitting toward my next free pattern with this Sheer One-Piece Shawl from Iris Schreier's book Modular knits. The yarn is a huge skein of handpainted Pima cotton in the colorway Dusk, which I found on eBay from Over The Rainbow Yarns. I am using a double wrap instead of a yarn over for the elongated stitches, as Iris suggested, and it is working up very quickly. More pictures as I get further along - I'm almost finished the back center-increase diamond.