I found this website, Celebrity Close-Up, via Tumblr today, which is just a series of photos of celebrity faces zoomed in close enough that you can see all the detail and texture of their makeup and skin. I'm not in it to make fun of anyone, but it's reassuring to be reminded that everyone, even Beyonce (gasp!), has pores and spots and/or visible foundation. And that our quest for invisible but flawless base makeup is bound to fail if even these people don't have access to such a thing.
Plus, there are some excellent sources of makeup inspiration here, and you can see how the products were applied in detail.
Be warned: there is a Trump close-up on the first page!