I hope you all enjoy this challenge!
I learned this technique from an Adobe PSE magazine. It involves using the Displace filter to make an image look like it is painted directly on a textured surface.
The wall, a photo of an ancient Mexican pyramid, is from Seldom Seen at T4L and the image of Frida is a photo from a Mexican Cultural poster, the kind that might be plastered on a wall.
This one is based on an idea for an art journal proposed by Elizabeth Golden, from Last Door...Down the Hall. It's to use photos of old walls and add your own "graffiti" to them. She's done several, and they are posted on her blog. This wall is, in fact, one of her photos, offered as a freebie there. Thank you Elizabeth! The Dancer is a brush I made from an altered photo.