What is the ruling on still photography and the ruling on keeping printed and digital photos, and does this fall under the prohibited forms of photography?

Digital images are not included in the prohibited forms of photography. As for photographic images printed on paper, there is a difference of opinion among scholars, and the preponderant view is that they are permissible because they are not the act of the photographer, but rather the capturing of a shadow by a device. Regarding their possession, there is also a difference of opinion, and the more cautious approach is not to keep them unless out of necessity.