I wouldn't have thought of orange for the background, but it is perfect! You have wonderful color sense.
I'm not a fan of meandering, except for very small stippling. I love Tartan's idea of leaves, vines, and bamboo. Here's a bamboo design idea from Leah Day -
https://freemotionproject.com/2009/1...oo-forest.html. I would probably do the same thing in the background and the border, so all the orange areas are visually connected. I can't wait to see how this turns out.