1. Duplicate your image, in case you need to erase any of the areas you are going to change, to return to the previous state.
2. Go to "Layers" > Adjustment Layer > Hue/Saturation > "Ok"
3. You will focus on the Greens or Yellows, depending on the photo. Drag your Hues to the left, toward the reds and oranges. For this image, I have the Yellows on -33 and Greens on -43
4. It affected the skin areas, which I do not want. So, I have erased the areas I don't want affected, from the Adjustment: Hue/Saturation layer.
5. After erasing the Adjustment layer, the contrast between the new and original version was too drastic--she had a lot of green tones in her skin, from the trees around her. So, I adjusted the Color Balance on the 2nd layer, just to add a little more Magenta--this will vary, by the photo.
6. Lastly, I wanted it a little more warm around the edges. So, I used the Burn tool (set for Midtones on 50%), to create a very subtle vignette.