This is a classic top-down yoked sweater with yoke, sleeve separation, body and then sleeves and collar worked at the end. You need three colors of yarn, preferably well contrasting.

Yarn:
MC (grey): 57%
CC1 (dark red): 37%
CC2 (yellow): 6%

Notions:
4mm/US6 circular needles of various lengths are the main tools. If your one-color stockinette is looser than your colorwork stockinette, switch to 3.5mm/US4 needles for sleeves.

Difficulty:
Testers rated the pattern difficulty 5/10.