Made this for our grandson almost 4 yrs. ago now. I used 4 identical flannel panels and a camo backing (no batting) and then sewed the chenille rows. Just be careful when you cut that you don't cut through the last panel, which was the base, or the backing fabric. In this case, you would only chenille the top 3 layers. It came out plenty cuddly and warm with all those layers.
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Since the panel was too narrow, AFTER the panel was cut for chenille, I added the camo border by putting right sides of the border face down on the front, and put the back border with right sides facing the backing, and seamed. You can sew in the batting or just butt it to the seam allowance after each side is sewn. Then I FMQed the borders and bound. Hope this is clear. This picture was taken prior to washing.