I can't say with 100% certainty since I'm new to this as well, but this is exactly how my girl looked when her shed was stuck. She couldn't even get the shed started, much less get small pieces off until right before I helped her out. She got a few pieces off the night after I first soaked her, and I got the rest off with the second soak.
I was dumbstruck since I thought I was paying great attention to her humidity and did my best to mist frequently and keep her humidity over 60%. Alas, apparently I wasn't doing enough, because she still looked like a sad little mess almost exactly the way your pictures show.
Long story short, even with a foiled-top (I did the same) it seems glass enclosures are just awful for BP husbandry. There's no way to mist while you are asleep, and the humidity drops to the 40s by the time I wake up, tin-foil or not. I'm switching to a plastic enclosure from Constrictors NW and hoping that will give her a better home.
I soaked her for an hour a day for two days and was able to get the shed off, and she's back to her normal pudgy non-wrinkly self.