Step 5 Create a layer group under the photo in the layer stack. Using the previous selection, create a mask by clicking the Vector Mask button at the bottom of the Layer panel. Select the photo again, and set the blending mode to Screen. You’ll notice that the photo will disappear.

Step 6 Open blackwashes.jpg and select each wash with the Lasso tool (L), then copy and paste them into our image. For each, hit Cmd/Ctrl + L to open the Levels dialog, and adjust the levels to 74, 1, 209 respectively to increase the contrast of each wash.

Step 7 Pick one of the washes and turn it into a black-and-white image by selecting Image > Adjustments > Desaturate (Cmd/Ctrl + Shift + U).

Sharpening will emphasise texture, which is very important to get a great-looking image. Go to Filter > Sharpen > Unsharp Mask and set the amount to 106% and radius to 0.8. Repeat for each wash.