I honestly dont think the original has stuffing material. I believe the structure comes from the seam allowance and interfacing. It looks like the satin fabric may have iron on interfacing. The first method with interfacing and a bigger center hole pre scrunch might work.
True! I didn't think of that! There is just so much volume in the original photos I immediately thought - stuffing. lol and yeah I completely agree with having a bigger centre hole pre scrunch! It gives it that extra volume and looks more aesthetically pleasing with all that gathering 🥰
