u/fiddlesssticks

I’m starting to find my style with these displays!

Hello- I’ve been pinning for a few years and have never had this issue with (mold?) until now. I usually pin insects I find myself, but I bought some butterflies wholesale to practice with them. The 1 cicada I pinned myself, found already dead and put in the freezer for about 3 days, then thawed and pinned. The butterflies came pre-pinned, which is a mistake on my part for not reading the full description. Anyways, does this look like mold or glue residue? Cyanoacrylate glue is what I used, super glue.