Cardigan with large Relief pattern

Knitting instructions for the cardigan with large relief pattern:
Sizes: US 6–8 / UK 10–12, US 8–10 / UK 12–14.
Material:
1250 (1350) g yarn (50% extrafine merino wool, 50% acrylic, 55 m/50 g); straight needles US 10 / UK 4 and US 11 / UK 3; circular needles US 10 / UK 4.
Stockinette stitch: right-side rows knit stitches, wrong-side rows purl stitches.
Ribbing Pattern 1/1: alternate 1 knit stitch, 1 purl stitch.
Half Brioche Pattern: odd number of stitches.
Row 1 (RS): edge stitch, * 1 knit stitch, 1 purl stitch, repeat from *, end with 1 purl stitch and edge stitch.
Row 2 (WS): edge stitch, * slip 1 stitch with yarn over as if to purl, 1 knit stitch, repeat from *, end with slip 1 stitch with yarn over as if to purl and edge stitch.
Row 3 (RS): edge stitch, * knit together yarn over and slipped stitch of previous row, 1 purl stitch, repeat from *, end with knit together yarn over and slipped stitch of previous row and edge stitch.
Work once rows 1–3, then repeat rows 2 and 3 throughout.
Relief Pattern (Main Pattern): multiple of 4 stitches + 3 + 2 edge stitches.
Work according to chart.
Begin with 1 edge stitch and 1 stitch before the repeat, repeat the pattern throughout, end with 2 stitches after the repeat and 1 edge stitch.
Repeat rows 1–4 throughout.
Gauge, main pattern, needles US 11 / UK 3: 14.5 stitches and 24.5 rows = 10 x 10 cm.
Back:
With needles US 11 / UK 3 cast on 81/89 stitches and work 1 WS row in knit stitches.
Continue in main pattern.
After 51.5 cm from cast-on edge bind off at both sides for armholes 3 stitches, then in every 2nd row 1 x 2 stitches and 7 x 1 stitch = 57/65 stitches.
After 19.5 cm from beginning of armholes bind off at both sides for shoulder shaping 5/6 stitches, then in every 2nd row 3 x 5/6 stitches.
At the same time, after 2 rows from beginning of shoulder shaping, bind off center 13 stitches for neckline and finish both sides separately.
At neck edge bind off 2 stitches in next WS row.
Left Front:
With needles US 11 / UK 3 cast on 37/41 stitches and work like back.
For front slope bind off at left edge in every 28th row 5 x 1 stitch.
After 23 cm from cast-on edge on RS row place stitches from 8th to 26th (10th to 28th) stitch on holder for pocket opening and finish row.
For pocket lining cast on 19 stitches separately and work 11 cm in stockinette stitch.
Insert stitches of pocket lining in next WS row of front instead of held stitches.
Work armhole and shoulder shaping same as back.
Right Front:Work symmetrically to left front.
Sleeves:
With needles US 10 / UK 4 cast on 37 stitches and work 24 cm in Half Brioche Pattern.
End with 1 RS row so that RS is visible on the fold when cuff is turned up.
Continue with needles US 11 / UK 3 in main pattern from row 1.
At the same time increase 1 stitch each side in row 9.
Then alternate every 6th and 8th row increase 7 x 1 stitch = 53 stitches.
Include increased stitches in main pattern.
After 54 cm from cast-on bind off for sleeve cap at both sides 3 stitches.
Then in every 2nd row bind off 13 x 1 stitch and 2 x 2 stitches.
After 67 cm from cast-on bind off remaining 13 stitches.
Belt:
Cast on 7 stitches and work in Half Brioche Pattern, edge stitches always knit in every row.
After 130 cm from cast-on bind off all stitches.
Finishing:
Place held stitches of pocket openings on needles US 10 / UK 4 and work pocket facings 3.5 cm in Ribbing Pattern.
Bind off stitches in pattern.
Sew facings. 
Sew pocket linings on wrong side.
Sew shoulder seams.
Along edges of front and back necklines pick up 203 stitches with circular needles US 10 / UK 4 and work 11 cm in Half Brioche Pattern, edge stitches always knit.
Bind off stitches in pattern.
Sew shoulder seams and sleeve seams, sewing lower 12 cm with WS facing.
Turn up sleeve edges 12 cm outward.
Set in sleeves.