Oh I just looked at your photos supplied. I have noticed this brownish color before when I allowed the bleached prints to see daylight before the final post-bleach fix. In my case it was exacerbated by using hardened fixer when you fixed the original print. It only took about 1 or 2 minutes of exposure to sunlight for the bleached prints to darken that way for me. I now am prone to using set times that I know work and using my Jobo system so that I can bleach and then fix without reintroducing the print to light. Gene Laughter doesn't think that it is necessary to keep from light so long as you fix shortly after bleaching, but it eases my mind to do so without introducing any light at all between bleach and fix.