Dressing for autumn is easier if you have one garment that works both on its own and under something else.
Sky is a top, not a sweater. That sounds like a small difference, and it isn't. A top can have a shirt under it, a waistcoat over it, or neither — and it doesn't get too warm from it.
The half brioche gives it enough weight to hang like a garment and not like a layer. The eyelet pattern lets it breathe when you have something on top.
It is layering that actually works in practice, not only in photographs: you can take off the outer piece without being left in something that looks like underwear.
Beginner plus, needle 7. It goes faster than a sweater, for the simple reason that there is less to knit.
Beginner plus · needle 7 · half brioche and eyelet pattern