The Anastasia cardigan is a classical top down, worked starting from the neck it is worked flat, except for the sleeves; after having casted on the stitches you need to start right away with the increases for the back, the sleeves and the two halves of the front, you need to take into account the increases for the raglan and, at the same time, for the V-neck.
The border will be made later, picking up all the stitches from the front and the neck, and it includes the buttonholes on the right side.
The sleeves are worked with the magic loop technique, picking up the stitches left on hold at the end of the yoke and making in the centre the decreases you need to tighten the sleeves at the wrist level.

The shown model corresponds to a Medium size, with a positive ease around 15 cm.

Always bear in mind that the knitting needles size is just a suggestion: everyone works with a different tension, so a knitted piece worked by two people, with equal yarn and stitches, could be very different in terms of tension and measurements.
I therefore recommend making a swatch, flat or round depending on how the knitting is made, in order to have more than 10 x 10 cm to measure. If necessary, knit some stitches/row in garter stitch to avoid curling work and be at an advantage in the measurement.
The swatch is knitted in a stockinette stitch or with a different stitch depending on the stitch that you intend to use in your work; once finished and removed from the iron, stretch the swatch (better still would be to make measurements after washing it) and measure the number of stitches and rows corresponding to 10 cm.

SIZE
XS (S) M (L) XL

FINISHED BUST
50 (53) 56 (59) 62 cm

HEIGHT OF THE FINISHED SWEATER
53 (57) 61 (65) 69 cm + 6 cm bottom edge

SUGGESTED YARNS
SUPERWOOL by Lane Mondial (100% Extrafine Virgin Merino wool; 50 g / 125 m)
KID SETA STAMPE by Lane Mondial (70% Super Kid Mohair, 30%Silk; 25 g / 210 m)

YARN REQUIREMENT
Superwool col. 743 g 350 (250) 300 (400) 450
col. 525 g 100 (50) 100 (150) 150
col. 501 g 100 (50) 100 (150) 150
col. 746 g 100 (50) 100 (150) 150
Kid seta stampe col. 195 g 125 (75) 100 (150) 175

SUGGESTED NEEDLES
Circular 5mm and 5,5mm needles with 80 cm and 100 cm long cables

GAUGE
Cm 10x10 = 19 stitches e 25 rows/rounds worked in stockinette stitch with Superwool and Kid seta stampe yarns with circular 5,5 mm needles

TECHNIQUES
Tubular cast-on and cast off (worked flat)
2/2 Rib stitch
Stockinette stitch
Right slanting increase (M1R)
Left slanting increase (M1L)
Magic loop