JST How to Knit JST's Looped Eyelet Bind off

This is a pretty looped eyelet bind off for the Castaway Shores shawl (renamed from She Sells Seashells - mentioned in the tutorial).
www.ravelry.co...
This is a one skein shawl, knit in fingering weight yarn and can be found on Raverly and Payhip.

[@SafranKnit]

So beautiful 😍

[@ljubicajurman5252]

Beautiful…..thank you…💕

[@lightbulb1232]

I love this bind off! Could you please provide written instructions for it? Also, does the cast off row need to have an even number of stitches or does it not matter? Thanks!

[@LadyPelikan]

Do you know how much yarn is needed (compared to the width of the work or compared to a normal knitted row)?