You're correct. It's the puffy shoulders of the dress she's wearing. Here's the reference of the dress I chose.
I'll post the finished sketch when I'm done.
https://www.scribblehub.com/series/388231/path-of-a-sword-king/
My plot has barely begun yet but it's still in the early twenty chapters. If you're interested then please check it out.
https://www.scribblehub.com/series/388231/path-of-a-sword-king/
If you're interested please check out my story. It's my first story on SH. I upload every few days.