I used an assortment of vintage-looking fishing themed fabric. The outer border and backing is a soft green flannel.

I quilted half of the inner pieces with a simple fish shape. Actually, the Christian fish or Ichthys. I cut a few body shapes out of freezer paper. I pressed the shape on to the quilt and quilted around it. After a few presses with the iron, the pieces lost their "stickiness" so I just pinned them on and stitched around, with good results. Then, in the border, I quilted continuous loops of the body shape. I used a meandering looping design in the rest of the inner pieces. The binding is pieced.
Speaking of fishing, I caught this guy on camera just after he had a successful fishing expedition. An amazing sight!