I used Mash M-30 over a blue gradient. I've seen some elaborate designs with this image, but those people have about twice the surface area on their nails that I do!
I used a new to me set of Kleancolor called Blue Maniacs. As with all my Kleancolors, I get them in sets at Ross for $3.99. I even got the green set. I'm not that big of a fan of green, but I couldn't stop staring at the box while standing in line.
After sponging on the gradient, I used a topcoat to smooth the finish. Once I was done stamping, I topped everything off with a matte topcoat to give it a nice soft finish to simulate the sky.
Kleancolor - Lake Mist
Kleancolor - Kawaii Stuff
Kleancolor - Cobalt
Sally Hansen - Hard to Get
NYC - Matte Me Crazy
Mash - M30