You said you appliqued the circle to a square and cut into 4ths. Smart idea! I see your 2 fabric inspectors are enjoying your quilt,too!
When you pieced the blocks, having the 2 layers of fabric : circle + background, Did you use the same 1/4" seam allowance? I didn't know if you found extra bulk from the 2 layers and used a wider seam allowance. Thank you!