Altered Photographic Prints are regular photographs I've taken which have been messed with using photo image editors. Some of the effects in the Photoshop and Affinity plug-ins include:
Creating sharp, black or colored lines or edges
Mixing and blurring color areas
Creating an engraved look
High contrast
Posterization
Adding textures
Overlaying images
Blurring images
Adding colors
Often, these effects are used in combination on a single image. These alterations are not quick - they can take at least an hour or more of manipulation to get to the right feeling. Look closely at the images in the gallery (click on the image): sometimes the alterations are hard to see.