Chose a top down raglan as my main base based on pictures of the character, character figured, and some assumptions based on my understanding of knitting. (i.e.: raglan tops fit strange on me so the neck should stretch enough for an off-the-shoulder look) The three pleats at the front are 2k separated by 1p on each side, based on photos, and also lined up with the skirt pleats. (It somehow worked out for me, your means of success may differ!)
Knit top and first five rows in the round as directed for my size (M) in the Brick pattern, then knit flat until ~3in above where I wanted to be, then knit 3in in k2p1 rib. Slipped every 1st knit and purl when knitting flat for a clean edge, and added a purl ‘column’ on the right side to mimic edging 5k from both ends. Translated the body shaping to flat knitting - tried it on several times at this point to ensure fit.
Sleeves were knit in the round with tapering done pretty much as written in Brick, with 2.5in of k2p1 rib at the ends.
Back piece is basically the front panel of a v-neck men’s vest that I knit from the bottom up until the bottom of the V would be just above my waistline. Then I picked up stitches for what would be the ‘collar’ on a typical vest and knit k1p1 rib for 5 rows. This has no shaping because I’d rather seam it wrong than be halfway though seaming before discovering I’d miscalculated something… and this way, I can always re-seam if I change shape enough.
Seaming was an adventure - this is fiddly because it depends on how much shaping you want. But all seams will connect the edges of the back piece to the side seam area of the front piece. Hopefully the pics will help.
Top of the back piece that isn’t ribbing is carefully seamed into the sides for support. I don’t know how else to explain this - another pattern I messed with called for seaming by following only one side of a knit stitch.
“Tie” at the back is a couple rows of crochet with some “Koren knot” flowers made from yarn and stiffened with fabric glue on the backsides. Front flower was made in the same way. Saw the idea in another Yor cosplayer’s YouTube video, but they use stiff red cord to make the flowers.