You may wish to use circular needles for the back and front of this garment.
You will need a cable needle.

Finished measurements:
Bust circumference: 30.5( 34, 38.5, 42.5, 46.25, 550.5, 54.25, 58.25, 62)“ 77.5( 86.5, 97.5, 42.5, 46.25, 50.5, 54.25, 58.25, 62) cm
Finished length: 16.75( 17, 17.75, 18.5, 19.25, 20, 20.5, 21.25, 21.75)” 41( 43, 45, 47, 49, 51, 52, 54, 55) cm

Yarn used:
Rowan Alpaca Soft DK
Shade 217 Naples Blue - 4(4, 5, 5, 6, 6, 7, 8, 8) balls