Finally got some decent photos of this round yoke sweater. It's made on a regular hook (5 mm) with sock weigh yarn (sock yarn and the rainbow yarn is from a cake).
The Bucket List: Yoke Sweaters
Early Autumn / DROPS 166-9 - Free knitting patterns by DROPS Design
Knitting A Top Down Yoke Sweater - The Easy Eyelet Yoke Sweater — Knitatude