Mermaid Tale has a mix of large green holo hex and smaller green hex glitter in a clear base. I'm wearing three dabbled coats over Pretty Serious - VT100. This one was the easiest of the three to build up. If you're patient you could probably wear this on on it's own after 4-5 coats. The formula was great and it was easy to pick up glitter on the brush. I put this on yesterday not realising it was St Patrick's Day, it was a nice coincidence. The holo hexes really stand out! They were distracting me at work when the sun hit my nails.
Orly Spazmatic is a mix of blue hex glitter and blue to pink shifting micro flakes in a clear base. You definitely can't build this one up on its own so I layered it over China Glaze - Frostbite in the swatch above. This combination had a very icy feeling to it. The brush picked up a lot of the clear base so I tried to wipe as much of it off as I could without loosing the glitter from the brush. If I didn't wipe off some of the base the glitter wouldn't be as concentrated on the nail and each coat would be thick and take a long time to dry. It's a little hard to see the blue to pink shifting flakes in the swatch but you can see them in the macro photo.