Using Essie's borrowed and blue as the base color, and two coats of Deborah Lippmann's Glitter in the Air, has proven itself to be an amazing pastel blue marshmallow-ee goodness in my heart.
Personally, Glitter in the Air by itself has been a really pretty shade, I prefer not having to put on a million coats to get the color to show, and Borrowed and Blue is a really pigmented pastel blue. Personally, I've been thinking about jelly-ing out borrowed and blue, and mixing the two, and then putting on a coat of Glitter in the Air, since a pigmented base will cover up the sparse glitter.
But for now, this is exactly how I'm going to wear it.
.. The glitter is wayyy too pretty!