The quality of the light is remarkable, above and beyond the content of the image. It almost looks like it was shot in a studio, as it has that seamless top to bottom even illumination. I presume that's due to an overcast day and reflected light filling in the shadows. Very evocative and lovely.
This is a very impressive group of pictures. I am curious as to the toner you use. I don't find a Google reference to Agfa 520 toner other than an ink jet toner. Is Agfa 520 something you make up from scratch?