Let's start with Fiesta, a bright pink with a fairly subtle shimmer. This was the only one of the four I had trouble applying. It was very thick, even after I added thinner, but I might have just gotten a bad bottle, as none of the other three were like this. I used three coats (all of these swatches are without top coat).
Olé is a coral creme that leans toward orange; I had no issues with application and used 3 coats.
Bailamos is a teal-y turquoise shimmer; again, three coats. This one gave my camera trouble, so I had to adjust the settings to get the polish right, thus the change in my skintone from previous shots.
La Playa is a deep blue creme. The formula was bit thin--again, don't know if that's just my bottle--but I only needed 2 coats.
La Playa is my favorite of this collection, in part because I don't have very many blue cremes, but also because it reminds me of what is perhaps my favorite blue, OPI Yoga-ta Get This Blue, just without the shimmer. I don't think there's a bad one in the bunch, though; I would wear any of these, even the orange, which I usually avoid. I just need to see if I can thin out my Fiesta some more and make it play nice.
I did do some comparisons with this collection, but I'll save that for another entry since this one's already photo-heavy.