Quick update; the shed box didn't work, but the scales that were retained in her previous shed are flaking off very easily. I'm wondering if this is some sort of partial shed thing where the scales are trying to regrow that protective outer coat? The scales on her back look dry and flaky, but the ones on her belly actually look better, and are significantly harder than they have been...
Her eyes didn't go blue, but I wasn't sure if they would go noticeably blue since the eyecaps were retained? Anybody know about that?

For now I'm going to keep her humidity way up, and keep checking to see whether anything will start easily. I don't want to damage another layer of scales...