Thank you all.
Filmsprocket - interesting intrusion . It was quite fast, I made three frames only and selected this one. He was looking out of window on late afternoon, there was little light and in combination with his hyperactivity also very little time to make photographs.
Victor - agree, Variant is specific, very good for some kind of photographs. Longer in development and need precise continuous agitation, othervise it develops more than infectiously ...
The longer I look at this print, the more I think to disregard my last 'intrusion'. It is so cool, and, I think you prefer to keep the full-frame aspect intact. I put this in my 'Favorites' gallery.