The inner lower portion of the vest looks like it does attach to the upper portion. You can see the 1″ wide webbing on the outer edge, but then if you look right under the collar, the white fabric looks like it continues upward. Might need to make another pattern alteration here.
The inner upper portion of the vest looks to be at least two layers – the one with the rectangular pads and another under it, you can see how they’re separating at the edge near her shoulder. Lots of visible stitching there too.
The vest fabric looks really thin and prone to wrinkling, especially on the collar edge. The stretch cotton shirting we used in the Hollywood premiere build has a similar behavior, so that’s a good sign.