Once your blocks are all sewn together, arrange them in a layout. For me, working on the floor is easier. The blocks are large, and would require a very large design wall to have room for them all, and I'd have to be getting up and down a ladder to arrange them, and that gets old fast***.
Arrange the blocks. Here I have 6 rows of 5 blocks each. Rotate the blocks to your heart's content.
Make sure you don't have any "blobs" or areas of too many darks or
brights next to each other. Strive for a flow of some sort. Try to distribute colors and values so your eye doesn't stop moving around. (If it stops, it's stuck, and that's bad.) Be patient. It took me over an hour to get this far, and looking at this photo as I write this post, I see a block in a place I don't like. (I've just moved it. Twice.)
Now all I have to do is sew it up!
***In my old place, the dining room had a linoleum floor, so I'd lay them out there. That posed two problems.
One problem was my cat Millie, who loved nothing more than to play "slip and slide" over all the pieces. To counteract that, I took lots of pictures. But now Millie is older and less interested, and I live in a house with wall-to-wall carpeting throughout.
The second problem was getting up and down from the hard floor. If you're of a certain age, you know what I mean. The fix was surprisingly simple. A length of 1/2" PVC pipe with a crutch tip at the end. I could hold one end of the pipe, and select and drag the block along the slippery floor. The soft plastic crutch tip caught the fabric, and allowed me to drag, place and spin the block into position while standing up.