The images look good in my screen but I never use a red filter on people, a warming or yellow perhaps. I guess you compensated for the 3 stops loss with the R25 but that also have to be adjusted to the light temperature at the moment and the emulsion response.
In the case of HP5+, it is red biased type, so the compensation probably should be in the order of 4 or 5 stops.
Please check --> http://www.ilfordphoto.com/Webfiles/...1054152313.pdf
Not a fan of the Zone system so I can't make any comment about it.
In any case, the images are very telling. Thanks for sharing.
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