The one with the flower pattern needs three additional yarns - one ball of contrast A and a few yards of contrast B and C.
The other one which has a separate colour at the rib edges needs to have a small ball of contrast A.

Measurements
To fit chest
46 51 56 61 cm (18 20 22 24 in)
Length from shoulder
24 28 31.5 35.5 cm (9½ 11 12½ 14 in)
Sleeve seam
15 17.5 20.5 26.5 cm (6 7 8 10½ in)

Each source has a different set of recommended yarns. The following is from the Loweth Wools version.

Materials
Tootsy DK
Flower Patt Sweaters
2 2 3 3 50 gram balls
Contrasting Rib Edge Sweaters
2 3 3 4 50 gram balls
Stitch holders
3 press fasteners.