As discussed in my previous post I was not happy with this image in the standard flat grey of Ilford MGFB or Warmtone papers. So I ordered some selenium and performed some tests. This image has been toned at 1:6 dilution for 15 minutes. The color shift began after 4 minutes in the dark tones and was fully toned by about 12 minutes. Overall I like this image better now.
I also toned the image from the classic paper for the same time but it was too purple of a tone for my liking. 3 minutes would have been fine for archival purposes.
Below is a comparison of before and after toning (upper left corner) for the different papers.