There are a variety of ways to do photo image transfers and the way I know how is to print off some images onto acetate using an inkjet printer. From there you smear a little alcohol-based hand sanitizer onto the surface you want to transfer to and then flip the printed acetate over onto the alcohol gel you smeared on and then press down. The hand sanitizer gel lifts off the ink and it evaporates pretty quickly and the results are this ghosted image of the original.
I used some vintage images of the Northern Lights and some meteor showers and volcanoes erupting and one from an old photo-postcard of the Golden Gate bridge. Scans of the finished pieces as well as some overview shots plus a few of the source images are just below.
[Not sure what I'm doing wrong that the scans just never show the neon pink like they should. But, trust me on this one, these are incredible looking in person and are some of my new favorites.]