blouse stitching video part - 5

Now back part
As drawn for front draw the back portion also with the help of chart.
My length is 35 (Full length) and for you pls take ur size and mark.
Next b/4 - b/15 is 16.5
Next take the inch tape vertical and mark Sh/2 + half is 17.5
Next b/12+1 is 8.5
As in front piece similarly take 
Next b/4 - b/15 is 16.5 and measure as shown in picture and 
match with  Sh/2 + half is 17.5 and mark the line.
b/4 - b/15  in that b/4 + 1.5 is 24
Extend the code now and draw the back neck.
As in the front piece mark accordigly and see the picture for clear idea.
Draw the curve accordingly to get a good shape ok.