I have recently been IN LOVE with OPI's Cozu-Melted in the Sun from the OPI Mexico Collection. I saw it in my local ULTA recently, and couldn't stop coming back to it. This is the most amazing, warm, shimmery, coppery-rose color. It has tons of micro glitter in it and I think it would work well for most skin tones. I have worn it both plain and with nail art over it.
In these photos, I used Cozu-Melted in the Sun as a base color (2 coats) with konad m60 stamped over it in black.
I seriously feel like I'll never find a color that I love more than this beauty. It's neutral, but still has some kick to it. It's a nude, but oh so much more. I highly recommend this for anyone looking for a shimmery, nude color that's understated, but wildly unique.