To finish and complement the trees, I need to audition backgrounds to see what I like. I find that the easiest way to make a decsion is to use my digital camera to record the possiblities and then I can compare them.
My initial thought is that I do not want to worry about the path and the other trees in the background, but to make the background less realistic. I have decided to start by looking at both hand-dye and hand-dye lookalikes to see if I have something that works.
This fabric is close to the photo in that it is red and green, although I wanted more green and this is more red:

By adding another piece of the green to one side, I have gotten the balance closer to what I envisioned:

But I decide to look at other colors that may not be true to the original photo: the purple surprises me, I like it more than I thought I would:

The yellow looks a little over-powering:

more orange–this fabric is very bright and seems to fight with the trees:

more yellow? this fabric is maybe too realistic for the more graphic trees:

finally, more green, which is more naturalistic:

I am not loving any of these, so now I am considering “creating” the look myself using fabrics so I can control color placement. Feel free to post a comment and let me know what you think.