This sweater/cowl is fashionable and looks quite complicated. However, it is not and that's the beauty of it! The original pattern can be purchased for $9.16 at https://www.etsy.com/…/collection-3-patterns-with-the-price….
Something like this could also be made using my free LaDroca Infinity Scarf pattern http://www.tigrislu.com/machine-knit.html
Simply make it long enough to wrap around your body and connect, leaving room for armholes.