trying to mimic an I Love Mr Mittens cardigan - need help with shawl collar design

Hey y’all. First post here and looking for some help!

Many of you have probably heard of the brand I Love Mr Mittens. They’re a trendy knitwear company known for their truly, truly oversized knitwear.

I want to try my hand at this cardigan but need some help with the design. Looks like a simple enough design for the box of the cardigan, but how the heck do you knit that collar?

Thanks for any help you can offer!

Welcome to KH!
Around the 5th photo or so is a diagram of the short rows worked for a similar collar.

You might also look for similar patterns on Ravelry and see what they do.