This was a more structured layout of the pillow... I used 2" strips to give it a uniform look. It really does not matter what size the center starting square is, or even if it is square... but on this pillow I started with a 2 1/2" square.
I don't have pictures of other pillows, and the one issue I saw more than once, was when the strips are being added around the center, even though it appears that they are squarely around that center... as you get close to the edge several ladies found that their square was twisted a bit and they were running out of backing/batting on one or two sides. If this should happen... not to fear, fold your batting out of the way and add a strip to the backing. It does not matter if it matches as it is inside the pillow. It is also not necessary to press that seam open. Next, fold the backing out of the way and butt up a piece of batting to the batting... you do not want to overlap here. With the butt edges as your center line, zig-zag the two together. You can now go back to adding strips on the front. At the start of your project, because this is easy to happen, it is a good idea to make your backing and batting a good 3 or 4" wider than your finished size. Lots of reasons why it appears your batting suddenly has a mind of its own and runs out on you.
Maybe I can get a group picture of all of the pillows when everyone has their pillow completed .