So first paint your nails a bright blue, what I used was sinful colors Fly Away.
Then, take you dotting tool, and use the large side. make 2 big dots. One is the upper left corner and one in the lower right corner. Make sure there's more room to make more! Then, with a smaller side, put 3 dots spaced out above the big dot! Here's the final product!
I hope you enjoyed! Send me requests and and I'll make sure to do them!