In order to pass, tension has to be even, ends need to be woven in unobtrusively and securely, the directions need to be followed exactly (knit ribbing for 2" means 2"), and all swatches must be blocked appropriately with no distortion of stitches (especially ribbing or cables) or pin marks.
Swatch 1: K2, P2 Ribbing and Garter Stitch
Swatch 2: K1, P1 Ribbing and Stockinette Stitch
Back of swatch 2 showing even tension on the back side.
Swatch 3: Seed Stitch
Swatch 15: Horseshoe Cable