Where's The Soiree? is a pretty standard black. It's very pigmented (I only needed two coats, and maybe I could have gotten away with one). It also dries to a satin finish. I didn't bother taking photos of this alone. Chunky Holo Black is not like the other Kleancolor Chunky Holos. Chunky Holo Black has different-sized glitters in it. There's your standard small glitter, then a slightly larger glitter, then a small hex glitter, then larger hex glitter. In the bottle it shows all the colors of the rainbow.
I could not get that blue tone to show up on my nails at all.
Basecoat: Salon Sciences Instant Artificials (1 coat)
Color: Color Club Where's the Soiree? (2 coats)
Color: Kleancolor Chunky Holo Black (3-ish coats)
Topcoat: David (1 coat)
Where's the Soiree? has a pretty good application. Totally opaque in 1 coat except the places I messed up so I went with two. Cleanup was not fun. This is a very pigmented polish so it's best to be careful or plan to spend lots of time on cleanup.
As with the last Chunky Holo I wore, I thinned this before I even tried it. As a result I don't feel like my nails are super thick and I don't have any shrinkage even though I'm writing this post the next day. I did two regular coats and then dabbed on some of the larger glitter wherever I felt like I was missing it or had patchy coverage. The base of this polish is a weird grayish/brown sheer jelly. I might try this next time over a different color, like a dark blue, but I'm not sure what the base jelly will do to it.
I spent all night staring at my nails. This is a stunning combination. If you see Chunky Holo Black, you need to pick it up - you won't regret it.