Kaleidoscopes - watch those values!

Above - Some of these blocks are not playing well.  And corners are not on the block making the circles harder to see. 

Below is a lovely block with no corners, but made with dark and medium values. It's a perfectly lovely block but does not work with what I want.  I've made about 75 in the dark/medium values, but I've also made about 75 in the medium to dark and light.  Uh oh, which way shall I go? 

OK, now I'm cooking!  I'm planning for a quilt 11 x 13.  Adding the light corners makes a huge improvement as well as pulling out some that don't work.  Obviously I need to make lots more.  I have made so many of the  "wrong" blocks, I will try for another quilt and use the darker values.  I wanted those circles to be obvious!  I have 49 here - more out of the photo, some on my sewing machine, some on my cutting table - almost enough.   I used an unbleached muslin on the dark corners and a buttery yellow on the light corners.

The blocks are easy to make and finger pressing sped up the process, but getting the blocks, then rows together with those tricky angles, requires careful pin basting. Each block was pressed clockwise, with centers neatly "spun" but sewing blocks to rows, and then sewing rows together requires pressing seams open.