I have a little question how did you proceed for the edge of the shoulder ?
like a hem with invisible seam or totally differently ?
I mean the stitching in the center with the brass rivets at the corners. It looks like the stitching that binds the layers of a quilt together. I guess it's not really a quilt because it's only one layer, but the effect is the same.
I know you're from Italy, so in case you're not familiar with the technique, you can find more information here:
I wish I had your skills! Man... I'd totally be rocking some kick-ass get-up on Helloween this year (or the next, at least) if I did!