Thanks so much, Lynda. It’s really not that difficult. Take a picture you want to use and duplicate it. Open the Hue Up/Down brush and increase the size of the brush so it covers the entire pic. Simply click on the image and the hue will change. Keep clicking and the hue will keep changing. Click until you find the colors you want. I used a very colorful original so I could get stark differences. If you start with a less colorful pic, you’ll get more subtle changes. Play around with this tool, including the settings. It’s a lot of fun.
If this isn’t clear, please let me know.