The two charm packs I chose for this quilt had a good distribution of light, medium and dark fabrics. So I used that as my starting point.
Place the middle square for each row of your quilt block and place it right side together with the left-hand side square. Repeat for each row of each block.
I decided to include a plain background square in its place. I experimented with a few options and the bottom corner was my favorite.
Sewing the blocks together is basically a repetition of sewing the internal rows of your blocks together.
Take your first and second block on your top row and sew them right sides together using a clip or pin to align the seams. Chain piece with the first and second block for the second and third row.