Yes the pink is the gold effect I see after sepia., blotchyness is the problem which I feel is improper fix time, strength, followed by too short of a wash or too cold of a wash.
Originally Posted by Brook Hill
I think you will find that Gold toning after thiourea goes pink then red and as thiorea tones the highlights first then they will go pink/red with the gold. The KRST will have affected the shadows first and stopped any thiourea toning in the shadows. In short the pink colour may not be staining but toning, thiourea plus gold equals pink/red