Becca Pressed Shimmer Powders are my favourite cheek powders that I have been constantly using recently.
"A delicately fine shimmer powder that lights up the complexion, illuminating darkened areas and lackluster skin and creating a magical glow that emanates from within." - Becca.
They are buildable and easy to picked up using a tapered or blush brush. I use Odette as a highlight colour and the other two shades as a blush. I bought them a while ago on the Becca website as apparently these powders are getting discontinued so it's currently on sale, although some places are still doing them full price...
Brandalley are currently doing a Mineral make-up sale which includes some Becca products, and a few shades of these amazing Shimmer Powders. Check it out here, their eyeshadows are good too! You will need to sign up in order to see the page, it's really quick though.