When I have shown it to the Patchwork group my friends advised me to add some quilting on the blank squares.
In fact I had been wandering about this , but have no final idea I preffer.
I tried to add stars, pinwheels etc., but without result.
So now, some months later, I decide to quilt squares. Two inch squares different thread's colors.
I haven't erasable pencil and had to think out how to stitch them equal.
This was the solution.
Cut a 2 inches square and iron on the desired position. Measure with a ruler.
Stitch along the perimeter using walking foot or FMQ.
Remove the freezer paper.
I had to change 9 times bobbins and upper thread.
I think the quilt looks better this time.