This is my progress so far on the neck design.
Can you spot the difference between the two flowers?
I did long and short shading on both the flowers. However, in the first flower I did not split back into the previous rows of stitches. Instead, I started the stitches in the new rows from the endpoints of the stitches in the previous row.
I guess this method is most commonly used in East Asian embroidery. The second flower was done by splitting up the previous row's stitches. These two methods of working the long and short stitch have created two different effects.