Originally Posted by Metanoia
Is there a distance that the quilting stitches should be apart as a maximum? There is so much conflicting information on the internet.
That depends entirely on your batting and each batting has a recommendation for maximum quilting distance. I use Warm and Natural or Warm and White and I usually don't quilt less than a hand width. Usually, my design tells me how it wants to be quilted when the top is done.
Sometimes, I combine SID and a tied center, using embroidery floss.
I just took a look at your blocks, and I assume that you will put sashing between. You could SID along each side of the sashing (both directions). Inside each block, you could draw an irregular8-pointed star with a point where the dark line meets the edge, and an inside point centered on the next line. It would require a little free-form quilting, but it is still a straight line.