Off Shoulder Wikked Skull Tunic.
Size is determined by hook size.
Small H(5.00 mm) hook, Medium I hook (5.50mm)hook, Large K (6.50mm) hook
Gauge: G hook 14 dc = 4 inches I hook 12 dc = 4 inches K hook 10 dc = 4 inches

Finished measurements
Small Chest 36 in Length 27 in Medium Chest 38 in Length 29 in Large Chest 40 in
Length 31 in

Easily adjustable to plus size
To make plus sizes add 20 stitches (2 skulls) to the foundation chain. After making up the yoke, the extra skulls will be added to the body stitch counts. Instead of 3 skulls on each side. There will be 4 skulls.
Pictures of many of the rounds. American crochet terms.