Below: We're all pretty familiar with Revlon Perplex--in fact, lots of my fellow bloggers as well as myself posted this shade earlier today! Here's a look at Perplex with one coat of Gold Dust over it. This photo was taken with no flash indoors under natural lighting. It turns Perplex into a charcoal shade with a slight touch of olive. It also adds subtle green and gold micro shimmer.
Below: Under the same lighting, you can see that a reddish micro shimmer shows up when I move my hand to a different angle.
Below: This photo was taken under brighter lighting (Ott lamp), and hints of Perplex are more evident. It's more grey than purple with this top coat, and subtle gold shimmer shifts around the nail creating an interesting illusion that makes the base color look almost like a creme shade near the tips.
Below: With a flash, Perplex is starting to show its true color through the pale green and gold micro shimmer.