This is a shawl Inspired by art deco wallpaper. Each fan (aka shell) has 9.5”/24cm width and 5.25”/13.5cm depth. Also each fan used 21yd (10.7g) of lovely worsted yarn Knitpicks Chroma. It’s easy to make larger if you wish.

Here are few answers for questions.
This is a bottom up shawl.
It has total 7 motif lines from bottom to top.
Not a seamless shawl. But, it doesn’t need to sew the seam later, too.
Make first fan than, pick up and built another fans.
Suggest cable CO and add some tutorial pic about cable CO and Prul cable CO on the pattern. But it’s okay to use any kind of CO whatever you would love to do.