On clean nails, apply a base coat to protect your nails.
Use the pastel blue color to create a vertical stripe on one corner, while leaving some space empty near the cuticle.
Now paint from the center, a little lower.
Create the last stripe, again lower. You should have what looks 3 steps.
Repeat the steps but starting from below the blue.
Do the same with the pastel coral.
Seal this with a top coat and you are done!