I've been sitting on this pattern and yarn that I picked out for it for a few years (frankly, the cast on intimidated me, and rightly so because it took about 4 hours to do 340 of the two-color situation) but now that I'm past the big bad hem I'm so happy I finally started. Pattern is the Troi sweater by Aleks Byrd, I believe the yarn is mostly Juniper Moon Farm Patagonia.

https://www.ravelry.com/patterns/library/troi-sweater