After a BRISK walk (my, the weather has changed) and a cup of coffee to warm my hands (and procrastinate making decisions), I doctored a piece of birch fabric for some shaded "dirty" looking specimens and cut up the remaining 4 old strips into trees of various girth.
Placing them was another matter.
After about half an hour of back and forth, this is where I left it.
The bottom of this piece was bothering me. The bright yellow was a little over powering, so I considered reducing it in size. At the base of the trees (still only pinned), I used a combination of wool roving, thread snips, and cheesecloth to move the ground forward.
I think how much yellow I retain is going to be a gut thing. I'll know where to cut it off.
In the mean time I stitched down ALL the trees.