I liked the abstracted rectangles alot. So I started sewing a bunch of the cut strips together to piece in with larger rectangles.
Here's my newspaper template, to help visualize the layouts as they are in process:
Here are the first two mats that I completed:
Two things became apparent: (1) Line drawings or sketches that look great with no color or pattern can end up being very busy when executed in fabric. (2) Scale is important. I cut the strips 1-2" but they are too big relative to the overall size of the mats (13" x 18"). They would have more punch (maybe?) if they were a tighter group of narrow pieces.
So the next two mats that I completed are much simpler. I still have two to go with the Pennington fabric, then I will use the leaf stuff for the other sides of them.