I have four blocks with charcoal/black prints. Those I've placed at the corners as anchor pieces. I have 6 pink/red blocks, and decided to cluster those in the upper right and lower left corners. Then I decided to place the blue and brown blocks in a casual cross formation and filled in the rest of the spaces with the green blocks:
Originally, I'd planned to make the lattice around the blocks from solid cream calico - which is quite close to the back of the quilt I was using when I placed the blocks (below).
This top should assemble fairly fast. I expect to have that done by next week.