Step 1
First, widen neckline by 3 to 5cmon both back and front.
Then, connect the new shoulder point to center front and center back and raise a perpendicular from each edge 3 to 4cm long.
Draw the new neckline connecting the raised points, then move center back and center front edges outwards by 1,5cm.
Widen from side seam 4 to 5cm at hip line, blending to zero to waist.