I saw an exhibit last year of Andy Warhol's art and I've wanted to try something similar since. Although it's not as Warhol looking as Doris's wonderful page, I quite liked the effect I was able to get using Cassie's brush tutorial.

Cassie Jones:
How’d They Do That? No. 08: Custom Photo Brushes
Laying It All Out No. 15: A Matte Finish
Katie Pertiet:
Krafty Canvas Paper Pack No. 01
Full Page Frames No. 01
Maplebrook Studios:
Fiske Solids Paper Pack