Separate bodice and skirt by cutting at waistline.
Cut sleeve in half and merge each part to its bodice:
- back: space sleeve and bodice by 3 to 5cm at armhole notches (approx 10 cm below shoulder point). Try to keep armpit points at same level, it is ok if they are a bit apart
- front: space sleeve and bodice by 1 to 2cm at armhole notches (approx 9 cm below shoulder point). It is ok if armpit points overlap a bit.
Notice that slope of back and front sleeve is different 😉