So here are the manicure pictures, though I've been trying to get a better last step photo, but didn't succeed well.
How to create the look: You're going to need a sponge or an eyeshadow sponge to dab the second color.
2 nail polishes, I've been using the Sally Hansen Xtreme Wear in Purple Potion no.26 and Revlon's Ocean Breeze.
First step after buffering your nails is to apply 2 coats of Purple Potion, or any other color of your choice and wait until dry.
Second step: apply a little Ocean Breeze onto the sponge.
For a super galactic result you could apply at the end, a coat of glittery nail polish.