I did that with twisting the four patches in different directions. But since there was a lot of plain background in the print I was limited with that too.
As you can see in the four corner blocks there was no way to assemble them in a different way otherwise I would have ended up with a plain center.
Even with all that "experience" I am not able to come up with the ultimate fabric for a 4 PP and I wonder how one with Kaffee Fassett fabric would look like