@Art Monkey: You know the old expression....."There's more than one way to skin a cat"

I just thought this was a very interesting solution to the problem of what to do with the pre-existing tree when adding a decorative wall/fence to the property.

The colors on this didn't take any time, really. When you adjust levels, do each channel (red, green, blue) individually. The colors will change garishly during the process, but when you've made the last adjustment it should all look alright. You can do the same thing when you adjust curves, having different adjustments for each of the RGB channels.