Section A - Triangle
It is important to note that the RS beginning of row will be your edge for picking up stitches for Section B. I kept the garter ridges on this side of the triangle but slipped the 1st stitch on every WS row purlwise. I used a long 2mm straight needle to pick up the 66 garter bump stitches from left to right. This way they are easier to knit off as opposed to picking them up with the 3.5mm needle. I placed 6 pins evenly along the edge and did a yarn over as I came to each pin to bring the stitch count to 72 picked up. I knitted the YO through the back loop on the next row.

Clean Stripes - no bleeding (last 2 photos)
From section B onwards - Knit to the end of the row but before you turn your work, insert the left needle into the last stitch from right to left, slide it off the needle, bring needle tips together and replace it. Turn the work and knit the next row including the first twisted stitch.

A word on changing colours and catching the “sleeping” yarn at the back of work: (last 2 photos)
Knit the first 2 stitches with the new colour, taking care that the sleeping colour is not yet trapped. Now bring the working colour under the sleeping colour and continue knitting. This effectively traps the sleeping colour behind the 3rd stitch invisibly away from the stripes at the neck edge.

Wraps
I prefer to begin the wraps wyif, slip it, wrap it, put it back, turn and take yarn to back and I think they look tidier and tighter.

Bauble
I added a wooden bead to the tip to finish it off.

I used the Fibonacci sequence for the stripes in the last section:
1/2/3/5/8/13/21/34/55 garter ridges ( / signifies stripe).

I hope you found these notes helpful:)