Lovely pattern, along with my favourite yarn!!
I joined in the round for the small size, but then completed the first pattern repeat as section 4 in the large size (increased to 144 stitches) before following the pattern for the large size.
I thought the neck would be small, but it does really stretch and is plenty big (I am glad I didn’t follow the large pattern at the beginning, it would have been way too big).
The cowl weighs 67g. There is enough yarn leftover to make another small cowl.