Completed the navy linen shirt. Really like the fabric but have not done a great job. The missing sleeve section was perhaps an omen. I will make this again as I really like clothes that are tailored, have lots of top-stitching and zippers. Next time I will complete the button holes before assembling the fronts, and off course I will keep track of all the bits.
Close up of the concealed button, still need to finish the horizontal top stitching on each side of the button.