/cgl/ - Cosplay & EGL

So, I am going to make my first lolita half bonnet and I am a bit stumped on something. Of all the tutorials I have come across, even the one I intend on using for this project, don't address this issue. I want to make this as neat and professional as possible and wanted to know how can I go about sandwiching both the hood and the ruffle at the back of the bonnet kind of like the one pictured to the left. I've been looking at a bunch of half bonnets from brands and it appears as though they managed to sandwich these two separate pieces kind of like the way they do with "old school" or "maxi pad" headdresses if that makes sense. Basically, I just want to make sure there is a piece of lining fabric underneath the top rectangular piece attaching the ruffles, hiding any edges from these pieces. I really hope I make sense as I don't really know how to explain myself about this issue. Any help is appreciated.