This is Sally Hansen CSM Mermaid's Tale, and Smitten Polish Glacial Springs:
It doesn't look like it in my pictures but apparently Mermaid's Tale is most famous for being a near-dupe of Lippmann Across The Universe. YouTube nail-blogger Hannah Eve has done a dupe video which includes Mermaid's Tale; she says it's not quite a full-on dupe but it's close. I deliberately did my swatches here without any dabbing or attempt to get the glitter to show more, that was just a decision I made from the beginning of this project. But on glitters it can make a ton of difference and I think that's probably the case here. If you get it on considerably thicker than I did, then it's probably going to look more like AtU. That's my guess, anyway. Mermaid's Tale is still a current CSM color.
I went to look at Smitten Polish (although I had an idea that Glacial Springs was LE to begin with, so I wasn't expecting to find it and I didn't) and what I found out is that Smitten Polish doesn't exist any more under that name - they have changed their name to Dreamland Lacquer. The FAQ says something about trademark issues. Smitten was a pretty popular indie, I think, but I haven't especially been keeping up with such things lately, so I was surprised to hear about this. (I do have a list of indie polishes that I try to check periodically but unsurprisingly, I'm behind on it. Every list of indies I've ever seen is like that, though - it's just impossible to keep track of, really. I did go through in the last week or so and update a few things but parts of it are probably still very out-of-date.)