Interesting photo. I tinkered with it a bit to restore the colors, but couldn't tone the redder left section to the rest of the picture. My software can change lightness or darkness by sections, but not color balance.?
Now you can see that the scale house was painted with that pukey hospital green paint the WP favored in their last years. I always hated that color. The mechanical reefer now appears to be a late UP/SP PFE car. There is a bay-window caboose on the far right track, possibly a WP steel car.