In this example of turning a photograph into a drawing, Bert uses a portrait of himself and first turns the entire image into a pattern (select all > edit > define pattern). He duplicates the image in a new layer, then applies the Find Edges filter (listed under Filter > Stylize). Desaturate the image, then change the layer style to multiply. This makes black drawing lines appear over the original photograph. In a new layer between the drawing and the original photo, he fills the image with a tan color, then applies a texturize filter to make the background look like a canvas. Bert then turns down the opacity of the drawing layer.