Trace a copy of back and full front as the style to be developed is asymmetric.
Draw back neckline from armpit level (or 1cm below it) to center back 2 to 3cm below armpit level. Make sure you have a right angle in center back, then a soft curve upwards to armpit.
Draw front neckline straight in center (dart to dart area), then slanted downward toward side seam. Neckline in center front should be at least 7cm above bust points (we suggest 8 to 19cm above it, make sure the coverage is the one you like by measuring on yourself).
Widen left and right shoulder darts by 1cm at neckline. This helps the neckline to be tighter to chest area.