Block #5 - the walking foot was used on this block for the matrix. It was a little difficult to see the curved line on the dark paisley fabric and I short stitched it and had to go back and add the line. I used Crayola Washable Markers (for kids) to mark the quilt. I washed the lines out and the block did not turn out too bad. I am happy with it...not perfect, but I am learning.