It is very sheer, so much so that its best to layer it. I layered it over Love & Beauty Dawn Sky. The glitter in Whimsical is a little hard to place. Nothing a little patience doesn't fix. Absolutely worth the time. I'm still searching for the perfect polish to go under Whimsical that compliments its light blue base.
Whimsical has been placed into Revlon's permanent collection, so if you have not seen it yet, it will show up. I was patient and eventually found it at Ulta.