First lets revisit Portra 160 with warming filter:
The suggestion was to adjust the White balance and reduce the 'warming'. Now I typically use warming filters with chrome films, which tend to be very blue. Example below, same scene, Velvia 50 with warming filter:
Now lets look at Portra 160 with White Balance adjusted (in Photoshop Levels):
And Portra 160 with both the White Balance and Black adjusted (in Photoshop Levels):
This one is getting closer to the natural color, but still a bit off. One viewer commented that your film choice is a reflection of your interpretation of reality. I like that! So I'll stick with the Chrome version of reality.