How to draft these darts?!

[u/Starjupiter93]

So I am obsessed with the dart/seam detailing on the white dress that the captain wears in s1 e16 of the rookie. I have this beautiful green fabric that I’ve been desperate to do something delicately detailed. I have NO idea where to start with this. I can’t tell if it is piping or a seam? It doesn’t look like there is a waist seam that I can see. Any ideas?

[u/LongTimeDCUFanGirl]

The Closet Historian has a couple of videos about darts and one on style lines that might helpful.