I generally make them up as i go. If I don't have enough of one print or colour, I throw something else in and when I get some nice surprises with colour combinations I run with it. No one knows what the original plan was so there is no need to be hung up about it. It will be what makes your quilt unique.
I would not introduce the mottled green to the front of your quilt. Keep it to the back if you want to use it is my suggestion and I would keep the rope and green to the front.
It is looking like there will be large areas to show off some nice quilting and feathers.