Here is a link to the original pattern by PurpleIguana on Ravelry and video timestamps for your convenience -
https://www.ravelry.com/patterns/library/seaside-shawl-8
Row 1 - 2:48
Row 2 - 5:42
Row 3 - 9:17
Row 4 - 13:13
Row 5 - 18:52
Row 6 - 25:40
Row 7 - 32:13
Repeat rows - 39:08